QID 38881

Date Published: 2022-11-29

QID 38881: Hypertext Preprocessor (PHP) Multiple Security Vulnerabilities (81726, 81727)

PHP is a programming language originally designed for use in web-based applications with HTML content. PHP supports a wide variety of platforms and is used by numerous web-based software applications.

Affected versions of PHP has multiple vulnerabilities:
CVE-2022-31628 : The vulnerability exists due to infinite loop within the phar uncompressor code when processing "quines" gzip files. A remote attacker can pass a specially crafted archive to the application, consume all available system resources and cause denial of service conditions.

CVE-2022-31629: The vulnerability exists due to the way PHP handles HTTP variable names. A remote attacker can set a standard insecure cookie in the victim's browser which is treated as a '__Host-' or '__Secure-' cookie by PHP applications.

Affected Versions:
PHP versions before 7.4.31
PHP versions 8.0.0 prior to 8.0.24
PHP versions 8.1.0 prior to 8.1.11

QID Detection Logic (Unauthenticated):
This QID checks the HTTP Server header to see if the server is running a vulnerable version of PHP.

Successful exploitation of this vulnerability allows a remote attacker to perform a denial of service (DoS) attack or bypass implemented security restrictions.

  • CVSS V3 rated as High - 6.5 severity.
  • CVSS V2 rated as High - 6.4 severity.
    • Solution
    Customers are advised to upgrade to the latest version of PHP.
    For more information please refer to Sec Bug 81726 and Sec Bug 81727 .

    Vendor References

    CVEs related to QID 38881

    CVE-2022-31628 | CVE-2022-31629 |
    Software Advisories
    Advisory ID Software Component Link
    81726 URL Logo bugs.php.net/bug.php?id=81726
    81727 URL Logo bugs.php.net/bug.php?id=81727
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