Vulnerability in Debian Gnu/linux Rssh
CVE-2019-3463
Insufficient sanitization of arguments passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.049 (91.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.049 · newest: 0.049 · change: 0.000
Affected products
- Debian Gnu/linux Rssh — versions All versions before 2.3.4-5+deb9u2 and 2.3.4-10
- Pizzashack Rssh — versions 2.3.4
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0
- Fedoraproject Fedora — versions 29, 30, 31
Weakness classification (CWE)
References
- www.debian.org/security/2019/dsa-4382 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2019/02/msg00007.html (mailing-list, Mailing List, Third Party Advisory)
- www.securityfocus.com/bid/106839 (VDB Entry, Third Party Advisory, vdb-entry)
- tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-sta… (Third Party Advisory)
- usn.ubuntu.com/3946-1/ (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- security.gentoo.org/glsa/202007-29 (vendor-advisory, Third Party Advisory)
- seclists.org/fulldisclosure/2021/May/78 (mailing-list, Mailing List, Third Party Advisory, Not Applicable)
Frequently asked questions
- What is CVE-2019-3463?
- CVE-2019-3463 is a critical-severity vulnerability in Debian Gnu/linux Rssh, classified under Argument Injection. CVSS score: 9.8/10. Published 2019-02-06.
- How severe is CVE-2019-3463?
- Critical severity. CVSS v3 base score is 9.8 out of 10.