Improper Input Validation The advisory has been revoked - it doesn't affect any version of package rssh (opens in a new tab)
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-DEBIAN10-RSSH-345573
- published3 Feb 2019
- disclosed6 Feb 2019
Introduced: 3 Feb 2019
CVE-2019-3463 (opens in a new tab)Amendment
The Debian security team deemed this advisory irrelevant for Debian:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rssh package and not the rssh package as distributed by Debian.
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.
References
- https://www.debian.org/security/2019/dsa-4382
- https://lists.debian.org/debian-lts-announce/2019/02/msg00007.html
- https://security-tracker.debian.org/tracker/CVE-2019-3463
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HO3MDU3AH5SLYBKHH5PJ6PHC63ASIF42/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KR2OHTHMJVV4DO3HDRFQQZ5JENHDJQEN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T42YYNWJZG422GATWAHAEK4A24OKY557/
- http://seclists.org/fulldisclosure/2021/May/78
- https://security.gentoo.org/glsa/202007-29
- https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/
- http://www.securityfocus.com/bid/106839
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-3463
- https://usn.ubuntu.com/3946-1/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HO3MDU3AH5SLYBKHH5PJ6PHC63ASIF42/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KR2OHTHMJVV4DO3HDRFQQZ5JENHDJQEN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T42YYNWJZG422GATWAHAEK4A24OKY557/
- https://www.exploit-db.com/exploits/52242