CVE-2023-3247 Missing error check and insufficient random bytes in HTTP Digest authentication for SOAP

2023-07-2204:17:09

CWE-330

CWE-252

php

www.cve.org

cve-2023-3247

php

soap

http

digest authentication

random bytes

error check

security issue

CVSS3

2.6

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N

AI Score

5.3

Confidence

High

EPSS

0.001

Percentile

21.5%

JSON

In PHP versions 8.0.* before 8.0.29, 8.1.* before 8.1.20, 8.2.* before 8.2.7 when using SOAP HTTP Digest Authentication, random value generator was not checked for failure, and was using narrower range of values than it should have. In case of random generator failure, it could lead to a disclosure of 31 bits of uninitialized memory from the client to the server, and it also made easier to a malicious server to guess the client’s nonce.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "PHP",
    "vendor": "PHP Group",
    "versions": [
      {
        "lessThan": "8.0.29",
        "status": "affected",
        "version": "8.0.*",
        "versionType": "semver"
      },
      {
        "lessThan": "8.1.20",
        "status": "affected",
        "version": "8.1.*",
        "versionType": "semver"
      },
      {
        "lessThan": "8.2.7",
        "status": "affected",
        "version": "8.2.*",
        "versionType": "semver"
      }
    ]
  }
]