CVE-2022-23531: Arbitrary file write when scanning a specially-crafted local PyPI package
First published: Fri Dec 02 2022(Updated: )
### Impact Running GuardDog against a specially-crafted package can allow an attacker to write an arbitrary file on the machine where GuardDog is executed. This is due to a path traversal vulnerability when extracting the `.tar.gz` file of the package being scanned, which exists by design in the `tarfile.TarFile.extractall` function. See also https://docs.python.org/3/library/tarfile.html#tarfile.TarFile.extractall ### Remediation Upgrade to GuardDog v0.1.5 or more recent. ### References * https://semgrep.dev/r?q=trailofbits.python.tarfile-extractall-traversal.tarfile-extractall-traversal * https://www.trellix.com/en-us/about/newsroom/stories/research/tarfile-exploiting-the-world.html * https://docs.python.org/3/library/tarfile.html#tarfile.TarFile.extractall
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Datadoghq Guarddog | <0.1.5 | |
| pip/guarddog | <0.1.5 | 0.1.5 |
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Reference Links
- https://github.com/DataDog/guarddog/pull/89/commits/a56aff58264cb6b7855d71b00dc10c39a5dbd306
- https://github.com/DataDog/guarddog/releases/tag/v0.1.5
- https://github.com/DataDog/guarddog/security/advisories/GHSA-rp2v-v467-q9vq
- https://nvd.nist.gov/vuln/detail/CVE-2022-23531
- https://github.com/DataDog/guarddog/pull/89
- https://github.com/DataDog/guarddog/commit/98af5c8c1e9c15fa888c900252e76116b0ec25d1
- https://github.com/pypa/advisory-database/tree/main/vulns/guarddog/PYSEC-2022-42994.yaml
- https://github.com/advisories/GHSA-rp2v-v467-q9vq (Advisory)
Frequently Asked Questions
What is CVE-2022-23531?
CVE-2022-23531 is a vulnerability in the GuardDog CLI tool that allows an attacker to write an arbitrary file on the machine when scanning a specially-crafted local PyPI package.
What is the severity of CVE-2022-23531?
CVE-2022-23531 has a severity rating of 7.8, which is considered high.
How does CVE-2022-23531 affect GuardDog?
CVE-2022-23531 affects GuardDog versions prior to 0.1.5, allowing for Relative Path Traversal when scanning a specially-crafted local PyPI package.
How can I fix CVE-2022-23531?
To fix CVE-2022-23531, you should update GuardDog to version 0.1.5 or newer.
Where can I find more information about CVE-2022-23531?
More information about CVE-2022-23531 can be found in the GitHub repository and security advisories for GuardDog.
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