CVE-2021-27877Veritas Backup Exec Agent Improper Authentication Vulnerability
Bekannt ausgenutzt — Veritas Backup Exec Agent Improper Authentication Vulnerability
CISA hat am 07.04.2023 bestätigt, dass diese Schwachstelle in echten Angriffen genutzt wird. Frist für US-Bundesbehörden: 28.04.2023.
Erforderliche Maßnahme: Apply updates per vendor instructions. https://www.veritas.com/support/en_US/security/VTS21-001; https://nvd.nist.gov/vuln/detail/CVE-2021-27877
Beschreibung
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.
Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.
Betroffene Produkte und Versionen
| Hersteller | Produkt | Versionen | |
|---|---|---|---|
| veritas | backup exec | < 21.2 |
Referenzen und Patches
- https://www.veritas.com/content/support/en_US/security/VTS21-001#issue1 Vendor Advisory
- http://packetstormsecurity.com/files/168506/Veritas-Backup-Exec-Agent-Remote-Code-Execution.html ExploitThird Party AdvisoryVDB Entry
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-27877 US Government Resource
CPE-Treffer (NVD) (1)
cpe:2.3:a:veritas:backup_exec:*:*:*:*:*:*:*:*< 21.2