cve/2023/CVE-2023-20046.md

CVE-2023-20046

Description

A vulnerability in the key-based SSH authentication feature of Cisco StarOS Software could allow an authenticated, remote attacker to elevate privileges on an affected device.

This vulnerability is due to insufficient validation of user-supplied credentials. An attacker could exploit this vulnerability by sending a valid low-privileged SSH key to an affected device from a host that has an IP address that is configured as the source for a high-privileged user account. A successful exploit could allow the attacker to log in to the affected device through SSH as a high-privileged user.

There are workarounds that address this vulnerability.

POC

Reference

• https://github.com/orangecertcc/security-research/security/advisories/GHSA-j7p3-gjw6-pp4r
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-ssh-privesc-BmWeJC3h

Github

No PoCs found on GitHub currently.