CVE-2023-52892

HIGH EPSS 29.4%
Published Jun 27, 20242y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jun 27, 2024 2y ago
Last Modified Jun 17, 2026 2w ago

Description

In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
29.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-436

Affected Products 3

VendorProductVersionRange
phpseclibphpseclib*≥1.0.0  –  <1.0.22
phpseclibphpseclib*≥2.0.0  –  <2.0.46
phpseclibphpseclib*≥3.0.0  –  <3.0.33

References 4

  • github.com https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627
    Patch
  • github.com https://github.com/phpseclib/phpseclib/issues/1943
    ExploitIssue Tracking
  • github.com https://github.com/phpseclib/phpseclib/releases/tag/3.0.33
    Release Notes
  • github.com https://github.com/x509-name-testing/name_testing_artifacts
    Not Applicable

Remediation

  • github.com https://github.com/phpseclib/phpseclib/commit/6cd6e8ceab9f2b55c8cd81d2192bf98cbeaf4627
    Patch