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CVE-2024-52550NVD status: Analyzed

Jenkins Pipeline: Groovy Plugin: Improper Validation of Integrity Check Value

CVE-2024-52550 is a high-severity improper validation of integrity check value vulnerability in Jenkins Pipeline: Groovy Plugin from Jenkins, with a CVSS 3.1 base score of 8.0 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, but only if a user takes part, for example by opening a link or file. Affected Jenkins Pipeline: Groovy Plugin versions: 3975.v567e2a_1ffa_22 and earlier; 3990.vd281dd77a_388. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.46% chance of exploitation within 30 days, which is low compared with other CVEs.

Next patch cycle

High severity with no evidence of exploitation so far.

What to do

  1. Update Pipeline to 3975.3977.v478dd9e956c3 or a later version.
  2. Read the advisory on jenkins.io for workarounds and exact fixed builds.
  3. Because the attack needs a user to take part, warn users about unexpected links and files related to this product until it is patched.

Affected products and versions

VendorProductAffected versionsFixed in
Jenkins ProjectJenkins Pipeline: Groovy Plugin3975.v567e2a_1ffa_22 and earlier; 3990.vd281dd77a_388Not stated
Jenkinsgroovy3975.v567e2a_1ffa_22 and earlier; 3990.vd281dd77a_388Not stated
JenkinsPipelinebefore 3975.3977.v478dd9e956c3; _groovy3975.3977.v478dd9e956c3

Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Attack vector
NetworkCan be exploited remotely over a network, including the internet.
Attack complexity
LowNo special conditions are needed; the attack works reliably.
Privileges required
LowA basic user account is enough.
User interaction
RequiredA user must take an action such as opening a file or link.
Scope
UnchangedImpact stays within the vulnerable component.
Confidentiality
HighAll data handled by the component can be read.
Integrity
HighData or code can be modified at will.
Availability
HighThe component can be taken down completely.

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H. Scored by CISA (ADP).

Official description

Jenkins Pipeline: Groovy Plugin 3990.vd281dd77a_388 and earlier, except 3975.3977.v478dd9e956c3 does not check whether the main (Jenkinsfile) script for a rebuilt build is approved, allowing attackers with Item/Build permission to rebuild a previous build whose (Jenkinsfile) script is no longer approved.

Source: the CVE record as published by its numbering authority, via NVD and CVE.org.

The underlying weakness: Improper Validation of Integrity Check Value

The product does not validate or incorrectly validates the integrity check values or checksums of a message.

How developers prevent this class of flaw

  • The protocol specification describes the algorithm used for calculating the checksum. It is then a matter of implementing the calculation and verifying that the calculated checksum and the received checksum match.

More Improper Validation of Integrity Check Value vulnerabilities (CWE-354)

Timeline

  1. CVE record published.
  2. CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
  3. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Jenkins Pipeline: Groovy Plugin

All Jenkins Pipeline: Groovy Plugin vulnerabilities

Recent Improper Validation of Integrity Check Value vulnerabilities

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