Sunday, May 19, 2024

Multiple Cisco Small Business Routers Vulnerable to XSS Attacks

Cisco has alerted its customers about a critical vulnerability affecting several Small Business RV Series Routers models.

This vulnerability, CVE-2024-20362, poses a significant risk, allowing unauthenticated, remote attackers to conduct cross-site scripting (XSS) attacks.

The affected models include the RV016, RV042, RV042G, RV082, RV320, and RV325 routers, widely used in small business environments for secure internet connectivity and VPN access.

CVE-2024-20362: A Closer Look

The vulnerability stems from insufficient input validation in the web-based management interface of the affected routers.

Attackers can exploit this flaw by convincing users to click on a specially crafted link. This can lead to executing arbitrary script code in the context of the affected interface or the potential leakage of sensitive, browser-based information.

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The Common Vulnerabilities and Exposures (CVE) system has assigned this vulnerability the identifier CVE-2024-20362, with a base score of 6.1 on the Common Vulnerability Scoring System (CVSS).

This score reflects a moderate severity level, emphasizing the need for affected users to take immediate action to mitigate the risk.

Affected Products and Mitigation Strategies

The advisory specifies that all software releases for the RV016, RV042, RV042G, RV082, RV320, and RV325 routers are vulnerable.

In contrast, this vulnerability does not affect other models in the Cisco RV Series, such as the RV160, RV260, and RV340 series routers.

Given the absence of software updates to address CVE-2024-20362, Cisco has outlined specific mitigation strategies for affected customers.

Disabling remote management is recommended for the RV320 and RV325 models.

For the RV016, RV042, RV042G, and RV082 models, Cisco advises disabling remote management and blocking access to ports 443 and 60443, which can be achieved through the router’s web-based management interface.

Fixed Software

Cisco has announced that it will not release software updates to address this vulnerability, as the affected routers have entered the end-of-life process.

Customers are encouraged to consult these products’ end-of-sale and end-of-life announcements and consider migrating to newer models that continue receiving security updates and support.

This situation underscores the importance of regular security assessments and the prompt application of mitigations or upgrades to protect against evolving cybersecurity threats.

Customers are advised to regularly review Cisco’s security advisories and consult with the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers to ensure their network infrastructure remains secure and resilient.

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Divya is a Senior Journalist at GBhackers covering Cyber Attacks, Threats, Breaches, Vulnerabilities and other happenings in the cyber world.

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