CVE-2021-27877: Veritas Backup Exec Agent Improper Authentication Vulnerability
High · CVSS 8.2 (CVSS 3.1)KEV known exploitedEPSS 64.9%, 99th percentilePublished Updated Assigner: mitre
In CISA’s Known Exploited Vulnerabilities catalog: Veritas Backup Exec Agent Improper Authentication Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
Required action: Apply updates per vendor instructions.
Description
An issue was discovered in Veritas Backup Exec before 21.2. It supports multiple authentication schemes: SHA authentication is one of these. This authentication scheme is no longer used in current versions of the product, but hadn't yet been disabled. An attacker could remotely exploit this scheme to gain unauthorized access to an Agent and execute privileged commands.
Vector CVSS:3.1/AC:L/AV:N/A:N/C:H/I:L/PR:N/S:U/UI:N
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Veritas: Backup Exec Agent
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- packetstormsecurity.com/files/168506/Veritas-Backup-Exec-Agent-Remote-Code-Execution.html (opens in new tab)
- www.veritas.com/content/support/en_US/security/VTS21-001 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)