CVE-2022-20893 : Security Advisory and Response
Learn about CVE-2022-20893 impacting Cisco Small Business RV Series Routers. Multiple vulnerabilities could allow remote attackers to execute arbitrary code or trigger denial of service.
A detailed analysis of the multiple vulnerabilities impacting the web-based management interface of Cisco Small Business RV Series Routers.
Understanding CVE-2022-20893
This CVE involves remote command execution and denial of service vulnerabilities affecting Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers.
What is CVE-2022-20893?
Multiple vulnerabilities in the routers' interface could allow a remote attacker to execute arbitrary code or trigger unexpected device restarts, leading to denial of service.
The Impact of CVE-2022-20893
These vulnerabilities can be exploited by sending crafted requests to the web-based interface, potentially granting the attacker root-level access or causing device malfunctions.
Technical Details of CVE-2022-20893
A closer look at the vulnerability specifics and affected systems.
Vulnerability Description
Insufficient validation of user fields within HTTP packets allows attackers to execute commands with administrative privileges.
Affected Systems and Versions
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers are susceptible to these vulnerabilities across all versions.
Exploitation Mechanism
Attackers with valid Administrator credentials can exploit the flaws by manipulating the web-based management interface.
Mitigation and Prevention
Guidelines on immediate steps to secure affected devices and best practices for long-term security.
Immediate Steps to Take
Ensure strong Administrator credentials and restrict network access to the vulnerable interface to mitigate risks.
Long-Term Security Practices
Regularly monitor for security updates from Cisco and implement additional network security measures.
Patching and Updates
As of the report, Cisco has not released software updates addressing CVE-2022-20893.