Home/CVE/Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restri
CVE

CVE-2019-3464

Insufficient sanitization of environment variables passed to rsync can bypass the restrictions imposed by rssh, a restri

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.

CRITICAL · CVSS 9.8 EPSS 0.0564
Schedule remediation
  • EPSS percentile: top 9% of all CVEs by exploitation likelihood
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-665Improper Initialization
▤

Affected Products & Versions

4
pizzashack rsshall versions
debian linuxall versions
fedoraproject fedoraall versions
canonical ubuntu linuxall versions
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · security@debian.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Feb 2019 · 07:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

2
usnUSN-3946-1
cisa-csafcisa-csaf-csaf_files-OT-white-2019-icsma-19-311-02
🔗

References & Sources

10
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2021/May/78Mailing ListNot ApplicableThird Party Advisory
http://www.securityfocus.com/bid/106839Third Party AdvisoryVDB Entry
https://lists.debian.org/debian-lts-announce/2019/02/msg00007.htmlMailing ListThird 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/
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