9.8crit
CVE-2017-16616
Unsafe pyyaml load usage in PyAnyAPI
Also known as GHSA-vg8g-jpm9-jh8r, PYSEC-2017-23
Published 8 y ago · modified 4 mo ago · JSON
CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
3.6%
percentile 90%
Public exploits
0
none known
Summary
An exploitable vulnerability exists in the YAML parsing functionality in the YAMLParser method in Interfaces.py in PyAnyAPI before 0.6.1. A YAML parser can execute arbitrary Python commands resulting in command execution because load is used where safe_load should have been used. An attacker can insert Python into loaded YAML to trigger this vulnerability.
Exploit prediction (EPSS)
3.62% probability of exploitation in the next 30 days, higher than 90% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.0 | 9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pypi | pyanyapi | <0.6.1 | 0.6.1 |
Classification
- Weakness
- CWE-502 Deserialization of Untrusted Data
References
- joel-malwarebenchmark.github.io /blog/2017/11/08/cve-2017-16616-yamlparser-in-pyanyapi/ · x_refsource_MISC, x_transferred
- github.com /Stranger6667/pyanyapi/issues/41 · x_refsource_CONFIRM, x_transferred
- github.com /Stranger6667/pyanyapi/releases/tag/0.6.1 · x_refsource_CONFIRM, x_transferred
- pypi.python.org /pypi/pyanyapi/0.6.1 · x_refsource_CONFIRM, x_transferred
- nvd.nist.gov /vuln/detail/CVE-2017-16616 · advisory
- github.com /Stranger6667/pyanyapi/commit/810db626c18ebc261d5f4299d0f0eac38d5eb3cf · web
- github.com /Stranger6667/pyanyapi · package
- github.com /advisories/GHSA-vg8g-jpm9-jh8r · advisory
- github.com /pypa/advisory-database/tree/main/vulns/pyanyapi/PYSEC-2017-23.yaml · web
- joel-malwarebenchmark.github.io /blog/2017/11/08/cve-2017-16616-yamlparser-in-pyanyapi · web
Sources
- CVE List: CVE-2017-16616
- GitHub Advisory: GHSA-vg8g-jpm9-jh8r
- NVD: CVE-2017-16616
- OSV: PYSEC-2017-23
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.