CVE-2019-3464
Last modified
CVE-2019-3464 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Insufficient sanitization of environment variables 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.. EPSS estimates a 4.70% chance of exploitation in the next 30 days.
Description
Insufficient sanitization of environment variables 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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Pizzashack | Rssh | 2.3.4 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Fedoraproject | Fedora | 29 |
| Fedoraproject | Fedora | 30 |
| Fedoraproject | Fedora | 31 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
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://security.gentoo.org/glsa/202007-29Third Party Advisory
- https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/Mailing List, 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://security.gentoo.org/glsa/202007-29Third Party Advisory
- https://tracker.debian.org/news/1026713/accepted-rssh-234-5deb9u2-source-amd64-into-stable-embargoed-stable/Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3946-1/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4382Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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