In breve
- CVE-2022-30636 è una vulnerabilità ALTO (CVSS 7.5) che riguarda golang.org/x/crypto.
- Probabilità di sfruttamento nei prossimi 30 giorni (EPSS): 0.64%, superiore al 50.5% delle vulnerabilità.
- Correzione: aggiornare a 0.0.0-20220525230936-793ad666bf5e o successiva.
| Package | Affected versions | Patched versions |
|---|
| golang.org/x/crypto Go | < 0.0.0-20220525230936-793ad666bf5e
| 0.0.0-20220525230936-793ad666bf5e
|
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.
NVD 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.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free