Improper Authentication Affecting libssh package, versions <0.8.0~20170825.94fa1e38-1ubuntu0.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1804-LIBSSH-293662
- published17 Oct 2018
- disclosed17 Oct 2018
Introduced: 17 Oct 2018
CVE-2018-10933 (opens in a new tab)How to fix?
Upgrade Ubuntu:18.04 libssh to version 0.8.0~20170825.94fa1e38-1ubuntu0.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libssh package and not the libssh package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-10933
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0016
- https://www.libssh.org/security/advisories/CVE-2018-10933.txt
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10933
- https://www.debian.org/security/2018/dsa-4322
- https://lists.debian.org/debian-lts-announce/2018/10/msg00010.html
- https://security-tracker.debian.org/tracker/CVE-2018-10933
- https://www.exploit-db.com/exploits/45638/
- https://security.netapp.com/advisory/ntap-20190118-0002/
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10933
- http://www.securityfocus.com/bid/105677
- https://usn.ubuntu.com/3795-1/
- https://usn.ubuntu.com/3795-2/
- https://github.com/Virgula0/POC-CVE-2018-10933