SARA / Free Tools / CVE / CVE-2017-9811

CVE-2017-9811 — The kluser is able to interact with the kav4fs-control binary in Kaspersky Anti-

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.

CVSS

10.0 CISA

EPSS

24.67% (top 3.80%)

CWE

—

Published

2017-07-17T21:29:00.837

Last modified

2026-05-13T00:24:29.033

CVSS vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

01What is this vulnerability?

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

Patch to a fixed version listed in the vendor advisory (see references below).
Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

Published: 2017-07-17T21:29:00.837
Last modified: 2026-05-13T00:24:29.033

09References

packetstormsecurity.com — http://packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0…
seclists.org — http://seclists.org/fulldisclosure/2017/Jun/33
www.securityfocus.com — http://www.securityfocus.com/bid/99330
www.securitytracker.com — http://www.securitytracker.com/id/1038798
www.coresecurity.com — https://www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multipl…
www.exploit-db.com — https://www.exploit-db.com/exploits/42269/
packetstormsecurity.com — http://packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0…
seclists.org — http://seclists.org/fulldisclosure/2017/Jun/33
www.securityfocus.com — http://www.securityfocus.com/bid/99330
www.securitytracker.com — http://www.securitytracker.com/id/1038798

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