CVE-2021-21705
MEDIUM5.3EPSS 0.29%Incorrect URL validation in FILTER_VALIDATE_URL
發布日:2021/10/4修改日:2026/4/28
描述
In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.
受影響套件(4)
- Bitnami/libphp>= 7.3.0, < 7.3.29, >= 7.4.0, < 7.4.21, >= 8.0.0, < 8.0.8
- Bitnami/php>= 7.3.0, < 7.3.29, >= 7.4.0, < 7.4.21, >= 8.0.0, < 8.0.8
- Bitnami/php-min>= 7.3.0, < 7.3.29, >= 7.4.0, < 7.4.21, >= 8.0.0, < 8.0.8
- Debian/php7.4from 0, < 7.4.21-1+deb11u1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
參考連結(6)
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2021-21705
- WEBhttps://bugs.php.net/bug.php?id=81122
- WEBhttps://nvd.nist.gov/vuln/detail/CVE-2021-21705
- WEBhttps://security.gentoo.org/glsa/202209-20
- WEBhttps://security.netapp.com/advisory/ntap-20211029-0006/
- WEBhttps://www.oracle.com/security-alerts/cpujan2022.html