In Django 2.2 before 2.2.24, 3.x before 3.1.12, and 3.2 before 3.2.4, URLValidator, validate_ipv4_address, and validate_ipv46_address do not prohibit leading zero characters in octal literals. This may allow a bypass of access control that is based on IP addresses. (validate_ipv4_address and validate_ipv46_address are unaffected with Python 3.9.5+..) .
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-33571US | high7.5 | — | ||
In Django 2.2 before 2.2.24, 3.x before 3.1.12, and 3.2 before 3.2.4, URLValidator, validate_ipv4_address, and validate_ipv46_address do not prohibit leading zero characters in oct… | ||||
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references
External citations — patches, advisories, analysis.
- https://docs.djangoproject.com/en/3.2/releases/security/ADVISORY
- https://github.com/django/django/commit/203d4ab9ebcd72fc4d6eb7398e66ed9e474e118eWEB
- https://github.com/django/django/commit/9f75e2e562fa0c0482f3dde6fc7399a9070b4a3dWEB
- https://github.com/django/django/commit/f27c38ab5d90f68c9dd60cabef248a570c0be8fcWEB
- https://groups.google.com/g/django-announce/c/sPyjSKMi8EoADVISORY
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B4SQG2EAF4WCI2SLRL6XRDJ3RPK3ZRDV/WEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-33571WEB
- https://security.netapp.com/advisory/ntap-20210727-0004/ADVISORY
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