CVE-2022-30636

published 2024-07-02

CVE-2022-30636: httpTokenCacheKey uses path.Base to extract the expected HTTP-01 token value to lookup in the DirCache implementation. On Windows, path.Base acts differently…

Priority P3 43 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C H I N A N

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.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
debian	golang-go.crypto	< golang-go.crypto 1:0.0~git20220829.c86fa9a-1 (bookworm)	golang-go.crypto 1:0.0~git20220829.c86fa9a-1 (bookworm)
golang.org	x_crypto	>= 0 < 0.0.0-20220525230936-793ad666bf5e	0.0.0-20220525230936-793ad666bf5e
golang.org	x_crypto_golang.org_x_crypto_acme_autocert	< 0.0.0-20220525230936-793ad666bf5e	0.0.0-20220525230936-793ad666bf5e

CVSS provenance

nvd v3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

osv 7.5 HIGH

vendor_debian 7.5 LOW

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