Improper input validation in Kaspersky Anti-Virus For Linux Server
CVE-2017-9811
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.105 (95.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.105 · newest: 0.105 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- seclists.org/fulldisclosure/2017/Jun/33 (mailing-list, Exploit, Mailing List, VDB Entry, Third Party Advisory)
- packetstormsecurity.com/files/143190/Kaspersky-Anti-Virus-File-Server-8.0.3.297… (Exploit, VDB Entry, Third Party Advisory)
- www.securityfocus.com/bid/99330 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1038798 (VDB Entry, Third Party Advisory, vdb-entry)
- www.exploit-db.com/exploits/42269/ (exploit)
- www.coresecurity.com/advisories/kaspersky-anti-virus-file-server-multiple-vulne… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-9811?
- CVE-2017-9811 is a critical-severity vulnerability in Kaspersky Anti-Virus For Linux Server, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2017-07-17.
- How severe is CVE-2017-9811?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-9811 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.