CVE-2023-42445 Possible local file exfiltration by XML External entity injection

2023-10-0613:52:02

CWE-611

GitHub_M

www.cve.org

cve-2023-42445

local file exfiltration

xml external entity injection

gradle

out of band xxe

oob-xxe

xml entities

vulnerability

remote repository

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

6.8 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

25.6%

JSON

Gradle is a build tool with a focus on build automation and support for multi-language development. In some cases, when Gradle parses XML files, resolving XML external entities is not disabled. Combined with an Out Of Band XXE attack (OOB-XXE), just parsing XML can lead to exfiltration of local text files to a remote server. Gradle parses XML files for several purposes. Most of the time, Gradle parses XML files it generated or were already present locally. Only Ivy XML descriptors and Maven POM files can be fetched from remote repositories and parsed by Gradle. In Gradle 7.6.3 and 8.4, resolving XML external entities has been disabled for all use cases to protect against this vulnerability. Gradle will now refuse to parse XML files that have XML external entities.

CNA Affected

[
  {
    "vendor": "gradle",
    "product": "gradle",
    "versions": [
      {
        "version": "< 8.4",
        "status": "affected"
      },
      {
        "version": "< 7.6.3",
        "status": "affected"
      }
    ]
  }
]