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Cisco Systems on Wednesday shipped security patches to contain three flaws impacting its Enterprise NFV Infrastructure Software ( NFVIS ) that could permit an attacker to fully compromise and take control over the hosts. Tracked as CVE-2022-20777, CVE-2022-20779, and CVE-2022-20780, the vulnerabilities "could allow an attacker to escape from the guest virtual machine (VM) to the host machine, inject commands that execute at the root level, or leak system data from the host to the VM," the company  said . Credited for discovering and reporting the issues are Cyrille Chatras, Pierre Denouel, and Loïc Restoux of Orange Group. Updates have been released in version 4.7.1. The networking equipment company said the flaws affect Cisco Enterprise NFVIS in the default configuration. Details of the three bugs are as follows - CVE-2022-20777  (CVSS score: 9.9) - An issue with insufficient guest restrictions that allows an authenticated, remote attacker to escape from the guest VM

Networking equipment maker Cisco has released security updates to address three high-severity vulnerabilities in its products that could be exploited to cause a denial-of-service (DoS) condition and take control of affected systems. The first of the three flaws,  CVE-2022-20783  (CVSS score: 7.5), affects Cisco TelePresence Collaboration Endpoint (CE) Software and Cisco RoomOS Software, and stems from a lack of proper input validation, allowing an unauthenticated, remote attacker to send specially crafted traffic to the devices. "A successful exploit could allow the attacker to cause the affected device to either reboot normally or reboot into maintenance mode, which could result in a DoS condition on the device," the company  noted  in an advisory. Credited with discovering and reporting the flaw is the U.S. National Security Agency (NSA). The issue has been addressed in Cisco TelePresence CE Software versions 9.15.10.8 and 10.11.2.2. CVE-2022-20773  (CVSS score: 7.5),

Details have emerged about a now-patched security vulnerability in the Snort intrusion detection and prevention system that could trigger a denial-of-service (DoS) condition and render it powerless against malicious traffic. Tracked as  CVE-2022-20685 , the vulnerability is rated 7.5 for severity and resides in the Modbus preprocessor of the Snort detection engine. It affects all open-source Snort project releases earlier than 2.9.19 as well as version 3.1.11.0. Maintained by Cisco,  Snort  is an open-source intrusion detection system (IDS) and intrusion prevention system (IPS) that offers real-time network traffic analysis to spot potential signs of malicious activity based on predefined rules. "The vulnerability, CVE-2022-20685, is an integer-overflow issue that can cause the Snort Modbus OT preprocessor to enter an infinite  while loop ," Uri Katz, a security researcher with Claroty,  said  in a report published last week. "A successful exploit keeps Snort from p

Cisco has released patches to contain a critical security vulnerability affecting the Wireless LAN Controller (WLC) that could be abused by an unauthenticated, remote attacker to take control of an affected system. Tracked as  CVE-2022-20695 , the issue has been rated 10 out of 10 for severity and enables an adversary to bypass authentication controls and log in to the device through the management interface of WLC. "This vulnerability is due to the improper implementation of the password validation algorithm," the company said in an advisory. "An attacker could exploit this vulnerability by logging in to an affected device with crafted credentials." Successful exploitation of the flaw could permit an attacker to gain administrator privileges and carry out malicious actions in a manner that allows a complete takeover of the vulnerable system. The company stressed that the issue only affects the following products if running Cisco WLC Software Release 8.10.151.

Microsoft's  Patch Tuesday update  for the month of March has been made officially available with 71 fixes spanning across its software products such as Windows, Office, Exchange, and Defender, among others. Of the total 71 patches, three are rated Critical and 68 are rated Important in severity. While none of the vulnerabilities are listed as actively exploited, three of them are publicly known at the time of release. It's worth pointing out that Microsoft separately  addressed 21 flaws  in the Chromium-based Microsoft Edge browser earlier this month. All the three critical vulnerabilities remediated this month are remote code execution flaws impacting HEVC Video Extensions ( CVE-2022-22006 ), Microsoft Exchange Server ( CVE-2022-23277 ), and VP9 Video Extensions ( CVE-2022-24501 ). The Microsoft Exchange Server vulnerability, which was reported by researcher Markus Wulftange, is also noteworthy for the fact that it requires the attacker to be authenticated to be able to

Cisco this week shipped patches to address a new round of critical security vulnerabilities affecting Expressway Series and Cisco TelePresence Video Communication Server (VCS) that could be exploited by an attacker to gain elevated privileges and execute arbitrary code. The two flaws – tracked as  CVE-2022-20754 and CVE-2022-20755  (CVSS scores: 9.0) – relate to an arbitrary file write and a command injection flaw in the API and web-based management interfaces of the two products that could have serious impacts on affected systems. The company said both the issues stem from insufficient input validation of user-supplied command arguments, a weakness that could be weaponized by an authenticated, remote attacker to carry out directory traversal attacks, overwrite arbitrary files, and run malicious code on the underlying operating system as the root user. "These vulnerabilities were found during internal security testing by Jason Crowder of the Cisco Advanced Security Initiative

Cisco has released software updates to address four security vulnerabilities in its software that could be weaponized by malicious actors to take control of affected systems. The most critical of the flaws is  CVE-2022-20650  (CVSS score: 8.8), which relates to a command injection flaw in the NX-API feature of Cisco NX-OS Software that stems from a lack of sufficient input validation of user-supplied data. "An attacker could exploit this vulnerability by sending a crafted HTTP POST request to the NX-API of an affected device," Cisco said. "A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the underlying operating system." The flaw impacts Nexus 3000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, and Nexus 9000 Series Switches in standalone NX-OS mode running Cisco NX-OS Software that have the NX-API feature enabled. Also patched are two high-severity den

Cisco has released security updates to contain three vulnerabilities affecting its products, including one high-severity flaw in its Email Security Appliance (ESA) that could result in a denial-of-service (DoS) condition on an affected device. The weakness, assigned the identifier CVE-2022-20653 (CVSS score: 7.5), stems from a case of insufficient error handling in  DNS  name resolution that could be abused by an unauthenticated, remote attacker to send a specially crafted email message and cause a DoS. "A successful exploit could allow the attacker to cause the device to become unreachable from management interfaces or to process additional email messages for a period of time until the device recovers, resulting in a DoS condition," the company  said  in an advisory. "Continued attacks could cause the device to become completely unavailable, resulting in a persistent DoS condition." The flaw impacts Cisco ESA devices running Cisco AsyncOS Software running vers

Cisco has patched multiple critical  security vulnerabilities  impacting its RV Series routers that could be weaponized to elevate privileges and execute arbitrary code on affected systems, while also warning of the existence of proof-of-concept (PoC) exploit code targeting some of these bugs. Three of the 15 flaws, tracked as CVE-2022-20699, CVE-2022-20700, and CVE-2022-20707, carry the highest CVSS rating of 10.0, and affect its Small Business RV160, RV260, RV340, and RV345 Series routers. Additionally, the flaws could be exploited to bypass authentication and authorization protections, retrieve and run unsigned software, and even cause denial-of-service (DoS) conditions. The networking equipment maker acknowledged that it's "aware that proof-of-concept exploit code is available for several of the vulnerabilities" but didn't share any further specifics on the nature of the exploit or the identity of the threat actors that may be exploiting them. CVE-2022-20699

Cisco Systems has rolled out fixes for a critical security flaw affecting Redundancy Configuration Manager (RCM) for Cisco StarOS Software that could be weaponized by an unauthenticated, remote attacker to execute arbitrary code and take over vulnerable machines. Tracked as  CVE-2022-20649  (CVSS score: 9.0), the vulnerability stems from the fact that the debug mode has been incorrectly enabled for specific services. "An attacker could exploit this vulnerability by connecting to the device and navigating to the service with debug mode enabled," Cisco said in an advisory. "A successful exploit could allow the attacker to execute arbitrary commands as the root user." The network equipment maker, however, noted that the adversary would need to perform detailed reconnaissance to allow for unauthenticated access to vulnerable devices. Stating that the vulnerability was discovered during internal security testing, Cisco added it found no evidence of active exploitat

Cisco Systems has rolled out security updates for a critical security vulnerability affecting Unified Contact Center Management Portal (Unified CCMP) and Unified Contact Center Domain Manager (Unified CCDM) that could be exploited by a remote attacker to take control of an affected system. Tracked as  CVE-2022-20658 , the vulnerability has been rated 9.6 in severity on the CVSS scoring system, and concerns a privilege escalation flaw arising out of a lack of server-side validation of user permissions that could be weaponized to create rogue Administrator accounts by submitting a crafted HTTP request. "With these accounts, the attacker could access and modify telephony and user resources across all the Unified platforms that are associated to the vulnerable Cisco Unified CCMP," Cisco  noted  in an advisory published this week. " To successfully exploit this vulnerability, an attacker would need valid Advanced User credentials." Unified CCMP and Unified CCDM pro

Cisco Systems has released  security updates  to address vulnerabilities in multiple Cisco products that could be exploited by an attacker to log in as a root user and take control of vulnerable systems. Tracked as  CVE-2021-40119 , the vulnerability has been rated 9.8 in severity out of a maximum of 10 on the CVSS scoring system and stems from a weakness in the SSH authentication mechanism of Cisco Policy Suite. "An attacker could exploit this vulnerability by connecting to an affected device through SSH," the networking major explained in an advisory, adding "A successful exploit could allow the attacker to log in to an affected system as the root user." Cisco said the bug was discovered during internal security testing. Cisco Policy Suite Releases 21.2.0 and later will also automatically create new SSH keys during installation, while requiring a manual process to change the default SSH keys for devices being upgraded from 21.1.0. Also addressed by Cisco a

Networking equipment maker Cisco Systems has rolled out patches to address three critical security vulnerabilities in its IOS XE network operating system that remote attackers could potentially abuse to execute arbitrary code with administrative privileges and trigger a denial-of-service (DoS) condition on vulnerable devices. The list of three flaws is as follows - CVE-2021-34770  (CVSS score: 10.0) - Cisco IOS XE Software for Catalyst 9000 Family Wireless Controllers CAPWAP Remote Code Execution Vulnerability CVE-2021-34727  (CVSS score: 9.8) - Cisco IOS XE SD-WAN Software Buffer Overflow Vulnerability CVE-2021-1619  (CVSS score: 9.8) - Cisco IOS XE Software NETCONF and RESTCONF Authentication Bypass Vulnerability The most severe of the issues is CVE-2021-34770, which Cisco calls a "logic error" that occurs during the processing of  CAPWAP  (Control And Provisioning of Wireless Access Points) packets that enable a central wireless Controller to manage a group of wire

Cisco has patched a critical security vulnerability impacting its Enterprise Network Function Virtualization Infrastructure Software (NFVIS) that could be exploited by an attacker to take control of an affected system. Tracked as  CVE-2021-34746 , the weakness has been rated 9.8 out of a maximum of 10 on the Common Vulnerability Scoring System (CVSS) and could allow a remote attacker to circumvent authentication and log in to a vulnerable device as an administrator. The network equipment maker said it's aware of a publicly available proof-of-concept (PoC) exploit code targeting the vulnerability, but added it's not detected any successful weaponization attempts in the wild. CVE-2021-34746 issue is caused due to an incomplete validation of user-supplied input that's passed to an authentication script during the sign-in process, enabling an attacker to inject parameters into an authentication request. "A successful exploit could allow the attacker to bypass authenti

Cisco Systems on Wednesday issued patches to address a critical security vulnerability affecting the Application Policy Infrastructure Controller (APIC) interface used in its Nexus 9000 Series Switches that could be potentially abused to read or write arbitrary files on a vulnerable system. Tracked as  CVE-2021-1577  (CVSS score: 9.1), the issue — which is due to improper access control — could enable an unauthenticated, remote attacker to upload a file to the appliances. " A successful exploit could allow the attacker to read or write arbitrary files on an affected device," the company  said  in an advisory. The APIC appliance is a centralized, clustered controller that programmatically automates network provisioning and control based on the application requirements and policies across physical and virtual environments. Cisco said it discovered the vulnerability during internal security testing by the Cisco Advanced Security Initiatives Group (ASIG). Additionally, the

A critical vulnerability in Cisco Small Business Routers will not be patched by the networking equipment giant, since the devices reached end-of-life in 2019. Tracked as CVE-2021-34730 (CVSS score: 9.8), the issue resides in the routers' Universal Plug-and-Play (UPnP) service, enabling an unauthenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability, which the company said is due to improper validation of incoming UPnP traffic, could be abused to send a specially-crafted UPnP request to an affected device, resulting in remote code execution as the root user on the underlying operating system. "Cisco has not released and will not release software updates to address the vulnerability," the company  noted  in an advisory published Wednesday. "The Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers have  entered the end-of-life process .

Networking equipment major Cisco has rolled out patches to address critical vulnerabilities impacting its Small Business VPN routers that could be abused by a remote attacker to execute arbitrary code and even cause a denial-of-service (DoS) condition. The issues, tracked as CVE-2021-1609 (CVSS score: 9.8) and CVE-2021-1610 (CVSS score: 7.2), reside in the web-based management interface of the Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers running a firmware release prior to version 1.0.03.22. Both the issues stem from a lack of proper validation of HTTP requests, thus permitting a bad actor to send a specially-crafted HTTP request to a vulnerable device. Successful exploitation of CVE-2021-1609 could allow an unauthenticated, remote attacker to execute arbitrary code on the device or cause the device to reload, resulting in a DoS condition. CVE-2021-1610, concerns a command injection vulnerability that, if exploited, could permit an authenticated adve

A security vulnerability in Cisco Adaptive Security Appliance (ASA) that was addressed by the company last October, and again earlier this April, has been subjected to active in-the-wild attacks following the release of proof-of-concept (PoC) exploit code. The PoC was  published  by researchers from cybersecurity firm Positive Technologies on June 24, following which reports emerged that attackers are chasing after an exploit for the bug. "Tenable has also received a report that attackers are exploiting CVE-2020-3580 in the wild," the cyber exposure company  said . Tracked as  CVE-2020-3580  (CVSS score: 6.1), the issue concerns multiple vulnerabilities in the web services interface of Cisco ASA software and Cisco Firepower Threat Defense (FTD) software that could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks on an affected device. As of July 2020, there were a little over  85,000 ASA/FTD devices , 398 of which are spread acros

Networking equipment major Cisco has rolled out software updates to address multiple critical vulnerabilities impacting HyperFlex HX and SD-WAN vManage Software that could allow an attacker to perform command injection attacks, execute arbitrary code, and gain access to sensitive information. In a series of advisories published on May 5, the company said there are no workarounds that remediate the issues. The HyperFlex HX command injection vulnerabilities, tracked as CVE-2021-1497 and CVE-2021-1498 (CVSS scores 9.8), affect all Cisco devices running HyperFlex HX software versions 4.0, 4.5, and those prior to 4.0. Arising due to insufficient validation of user-supplied input in the web-based management interface of Cisco HyperFlex HX Data Platform, the flaws could enable an unauthenticated, remote attacker to perform a command injection attack against a vulnerable device. "An attacker could exploit this vulnerability by sending a crafted request to the web-based management int

Networking equipment major Cisco Systems has said it does not plan to fix a critical security vulnerability affecting some of its Small Business routers, instead urging users to replace the devices. The bug, tracked as CVE-2021-1459, is rated with a CVSS score of 9.8 out of 10, and affects RV110W VPN firewall and Small Business RV130, RV130W, and RV215W routers, allowing an unauthenticated, remote attacker to execute arbitrary code on an affected appliance. The flaw, which stems from improper validation of user-supplied input in the web-based management interface, could be exploited by a malicious actor to send specially-crafted HTTP requests to the targeted device and achieve remote code execution. "A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system of the affected device," Cisco  said  in its advisory. Security researcher Treck Zhou has been credited with reporting the vulnerability. Although th