Permissions, Privileges, and Access Controls in lshell - CVE-2016-6903
Published: April 24, 2017 / Updated: October 22, 2024
Vulnerability identifier: #VU39135
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-6903
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote authenticated user to execute arbitrary code.
lshell 0.9.16 allows remote authenticated users to break out of a limited shell and execute arbitrary commands.
Affected software
lshell
QNAP QES
QNAP QES
How to mitigate CVE-2016-6903
Install update from vendor's website.
lshell - update to 0.10
QNAP QES - update to 2.1.1 Build 20201006
QNAP QES - update to 2.1.1 Build 20201006
External References
- https://bugzilla.redhat.com/show_bug.cgi?id=1369345
- https://github.com/ghantoos/lshell/commit/e72dfcd1f258193f9aaea3591ecbdaed207661a0
- https://github.com/ghantoos/lshell/issues/149
- https://github.com/ghantoos/lshell/pull/153/commits/a686f71732a3d0f16df52ef46ab8a49ee0083c68
- https://github.com/advisories/GHSA-vw92-qfr4-w98m
- https://github.com/ghantoos/lshell/releases/tag/0.10