CVE-2022-30636

unknown

Published 2024-07-02 · Modified 2024-07-02

CVSS v3

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CVSS v2

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VIR risk

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Description

httpTokenCacheKey uses path.Base to extract the expected HTTP-01 token value to lookup in the DirCache implementation. On Windows, path.Base acts differently to filepath.Base, since Windows uses a different path separator (\ vs. /), allowing a user to provide a relative path, i.e. .well-known/acme-challenge/..\..\asd becomes ..\..\asd. The extracted path is then suffixed with +http-01, joined with the cache directory, and opened. Since the controlled path is suffixed with +http-01 before opening, the impact of this is significantly limited, since it only allows reading arbitrary files on the system if and only if they have this suffix.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-30636

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`1:0.0~git20220829.c86fa9a-1`
debian	bullseye	affected
debian	forky	fixed	`1:0.0~git20220829.c86fa9a-1`
debian	sid	fixed	`1:0.0~git20220829.c86fa9a-1`
debian	trixie	fixed	`1:0.0~git20220829.c86fa9a-1`

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	golang.org/x/crypto	`<0.0.0-20220525230936-793ad666bf5e`	`0.0.0-20220525230936-793ad666bf5e`

References

Verify integrity in audit chain (admin only). AS-IS.