CVE-2017-9811

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 10.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-07-17 · updated 2026-06-17
Weakness: CWE-20

Description

The kluser is able to interact with the kav4fs-control binary in Kaspersky Anti-Virus for Linux File Server before Maintenance Pack 2 Critical Fix 4 (version 8.0.4.312). By abusing the quarantine read and write operations, it is possible to elevate the privileges to root.

Affected products

Kaspersky Anti-Virus For Linux Server: through 8.0.3.297

References

http://packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0.3.297-XSS-CSRF-Code-Execution.html
http://seclists.org/fulldisclosure/2017/Jun/33
http://www.securityfocus.com/bid/99330
http://www.securitytracker.com/id/1038798
https://www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulnerabilities
https://www.exploit-db.com/exploits/42269/
http://packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0.3.297-XSS-CSRF-Code-Execution.html
http://seclists.org/fulldisclosure/2017/Jun/33
http://www.securityfocus.com/bid/99330
http://www.securitytracker.com/id/1038798
https://www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulnerabilities
https://www.exploit-db.com/exploits/42269/

Get alerted when CVE-2017-9811 or the next vulnerability affects your stack