VulnerabilityModified
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.
CRITICAL 9.8EPSS 4.87%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.87%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 4.87% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-88
- Affected
- pizzashack/rssh · debian/debian linux · fedoraproject/fedora · canonical/ubuntu linux
- Source
- security@debian.org
References
- http://seclists.org/fulldisclosure/2021/May/78Mailing List, Not Applicable, Third Party Advisory
- http://www.securityfocus.com/bid/106839Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2019/02/msg00007.htmlMailing List, Third Party Advisory
- 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://security.gentoo.org/glsa/202007-29Third Party Advisory
- https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/Third Party Advisory
- https://usn.ubuntu.com/3946-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4382Third Party Advisory
- http://seclists.org/fulldisclosure/2021/May/78Mailing List, Not Applicable, Third Party Advisory
- http://www.securityfocus.com/bid/106839Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2019/02/msg00007.htmlMailing List, Third Party Advisory
- 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://security.gentoo.org/glsa/202007-29Third Party Advisory
- https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/Third Party Advisory
- https://usn.ubuntu.com/3946-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4382Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.