Advisories

thClaws through 0.141.0 Symlink Following File Write via POST /v1/inputs

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severity
low
date
Affecting
  • thClaws <= 0.141.0

CWE
  • CWE-59 Improper Link Resolution Before File Access ('Link Following')
CVSS
2.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
Credit
hieuPenguinnn
Description
thClaws through 0.141.0 contains a link-following vulnerability in the post_inputs handler of the v1 API POST /v1/inputs endpoint that allows writes outside the workspace by following symlinks. Attackers who plant a symlink under the allowed inputs/ prefix can cause later authenticated uploads to write or truncate files outside the workspace with daemon privileges.

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