Auth bypass in Libssh
CVE-2018-10933
A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.918 (99.8th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.918 · newest: 0.918 · change: 0.000
Affected products
- Libssh
- NetApp Oncommand Unified Manager
- NetApp Oncommand Workflow Automation
- NetApp Snapcenter
- NetApp Storage Automation Store
- Oracle MySQL Workbench
- [Unknown] Libssh — versions 0.7.6, 0.8.4
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0
- Red Hat Enterprise Linux — versions 7.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- usn.ubuntu.com/3795-1/ (vendor-advisory, Third Party Advisory)
- www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html (Patch, Third Party Advisory)
- usn.ubuntu.com/3795-2/ (vendor-advisory, Third Party Advisory)
- www.debian.org/security/2018/dsa-4322 (vendor-advisory, Third Party Advisory)
- www.exploit-db.com/exploits/45638/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.libssh.org/security/advisories/CVE-2018-10933.txt (Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.securityfocus.com/bid/105677 (VDB Entry, Third Party Advisory, vdb-entry)
- lists.debian.org/debian-lts-announce/2018/10/msg00010.html (mailing-list, Mailing List, Third Party Advisory)
- psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0016 (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-10933?
- CVE-2018-10933 is a critical-severity vulnerability in Libssh, classified under CWE-592. CVSS score: 9.1/10. Published 2018-10-17.
- How severe is CVE-2018-10933?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2018-10933 known to be exploited?
- 140 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.