Wednesday, November 13, 2024
HomeCiscoCisco IOS Software Zero-day Exploited in Attacks

Cisco IOS Software Zero-day Exploited in Attacks

Published on

Malware protection

Cisco has issued fixes to address a vulnerability in the GET VPN feature of IOS and IOS XE software that has been exploited in attacks.

A remote attacker who has administrative access to a group member or a key server can exploit this vulnerability to run arbitrary code or bring down an affected device.

Cisco GET VPN is a set of features required for secure IP multicast group communication or unicast traffic over a private WAN that originates or flows through a Cisco IOS device. 

- Advertisement - SIEM as a Service

GET VPN integrates the group key management protocol with IPsec encryption to offer users an efficient way to secure IP multicast or unicast communication.

Document
FREE Demo

Deploy Advanced AI-Powered Email Security Solution

Implementing AI-Powered Email security solutions “Trustifi” can secure your business from today’s most dangerous email threats, such as Email Tracking, Blocking, Modifying, Phishing, Account Take Over, Business Email Compromise, Malware & Ransomware

Details of the Vulnerability

With a CVSS base score of 6.6, the Out-of-Bounds Write Vulnerability reported by Cisco is tracked as CVE-2023-20109 and has a ‘medium’ severity range.

“This vulnerability is due to insufficient validation of attributes in the Group Domain of Interpretation (GDOI) and G-IKEv2 protocols of the GET VPN feature”, Cisco said in its advisory.

A hacker could take advantage of this vulnerability by compromising an installed key server or changing a group member’s settings to point to a key server under the attacker’s control.

If the exploit is successful, the attacker may be able to run arbitrary code and take complete control of the target system, or they may force the target system to reload and create a DoS.

Affected Products

If a Cisco product had the GDOI or G-IKEv2 protocol enabled and was running a vulnerable version of the Cisco IOS software or Cisco IOS XE software, it is considered vulnerable.

Products Not Vulnerable

  •     IOS XR Software
  •     Meraki products
  •     NX-OS Software

This vulnerability, according to Cisco, can only be exploited in one of two ways:

  • The attacker compromises the existing key server and gains access to the GDOI or G-IKEv2 packets sent by the key server to the group member.
  • The attacker creates and installs their own key server and then reconfigures the group member to interact with the attacker-controlled key server.

Mitigation Measures

As stated in the advisory, Cisco recommends that affected users apply software updates as early as possible.

Cisco confirmed that there are no workarounds that address this vulnerability.

Protect yourself from vulnerabilities using Patch Manager Plus to quickly patch over 850 third-party applications. Take advantage of the free trial to ensure 100% security.

Gurubaran
Gurubaran
Gurubaran is a co-founder of Cyber Security News and GBHackers On Security. He has 10+ years of experience as a Security Consultant, Editor, and Analyst in cybersecurity, technology, and communications.

Latest articles

Automating Identity and Access Management for Modern Enterprises

Keeping track of who has access and managing their permissions has gotten a lot...

Finding The Right E-Commerce Platform – Comparing Reselling Solutions

If you’re looking to make some extra cash or to start a business, you...

Fortinet Patches Critical Flaws That Affected Multiple Products

Fortinet, a leading cybersecurity provider, has issued patches for several critical vulnerabilities impacting multiple...

China-Nexus Actors Hijack Websites to Deliver Cobalt Strike malware

A Chinese state-sponsored threat group, identified as TAG-112, has been discovered hijacking Tibetan community...

Free Webinar

Protect Websites & APIs from Malware Attack

Malware targeting customer-facing websites and API applications poses significant risks, including compliance violations, defacements, and even blacklisting.

Join us for an insightful webinar featuring Vivek Gopalan, VP of Products at Indusface, as he shares effective strategies for safeguarding websites and APIs against malware.

Discussion points

Scan DOM, internal links, and JavaScript libraries for hidden malware.
Detect website defacements in real time.
Protect your brand by monitoring for potential blacklisting.
Prevent malware from infiltrating your server and cloud infrastructure.

More like this

Fortinet Patches Critical Flaws That Affected Multiple Products

Fortinet, a leading cybersecurity provider, has issued patches for several critical vulnerabilities impacting multiple...

China-Nexus Actors Hijack Websites to Deliver Cobalt Strike malware

A Chinese state-sponsored threat group, identified as TAG-112, has been discovered hijacking Tibetan community...

Chrome 131 Released with the Fix for Multiple Vulnerabilities

The Chrome team has officially announced the release of Chrome 131 for Windows, Mac,...