CVE-2023-35133 Moodle: ssrf risk due to insufficient check on the curl blocked hosts

2023-06-2200:00:00

CWE-918

fedora

github.com

ssrf risk

moodle

curl blocked hosts

validation

cve-2023-35133

versions

logic issue

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

6.5

Confidence

Low

EPSS

0.001

Percentile

40.5%

SSVC

Exploitation

none

Automatable

yes

Technical Impact

total

JSON

An issue in the logic used to check 0.0.0.0 against the cURL blocked hosts lists resulted in an SSRF risk. This flaw affects Moodle versions 4.2, 4.1 to 4.1.3, 4.0 to 4.0.8, 3.11 to 3.11.14, 3.9 to 3.9.21 and earlier unsupported versions.

CNA Affected

[
  {
    "versions": [
      {
        "status": "affected",
        "version": "4.2.0",
        "lessThan": "4.2.1",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.1.0",
        "lessThan": "4.1.4",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "4.0.0",
        "lessThan": "4.0.9",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "3.11.0",
        "lessThan": "3.11.15",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "0",
        "lessThan": "3.9.22",
        "versionType": "semver"
      }
    ],
    "packageName": "moodle",
    "collectionURL": "https://git.moodle.org",
    "defaultStatus": "unaffected"
  }
]