CyberSecBulletin
CVE-2015-5317Exploited in the wildNVD status: Analyzed

Jenkins User Interface (UI) Information Disclosure

Published Updated By the CyberSecBulletin desk

CVE-2015-5317 is a medium-severity exposure of sensitive information to an unauthorized actor vulnerability in Jenkins, with a CVSS 2.0 base score of 5.0 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. Affected Jenkins versions: 1.637 and earlier; 1.625.1 and earlier. The record does not name a fixed version, so check the vendor advisory. CISA added it to the Known Exploited Vulnerabilities catalogue on May 12, 2023, which means attacks have been observed in the wild.

Patch now

Attackers are already exploiting this vulnerability, according to CISA.

What to do

  1. Check which version of Jenkins you run against the affected versions below, and install the vendor's latest release.
  2. CISA's required action: Apply updates per vendor instructions.
  3. Read the advisory on wiki.jenkins-ci.org for workarounds and exact fixed builds.
  4. Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.

Affected products and versions

VendorProductAffected versionsFixed in
JenkinsJenkins1.637 and earlier; 1.625.1 and earlierNot stated
Red HatOpenshift2.0; 3.1 and earlierNot stated

Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.

How the severity score breaks down

Access vector
NetworkCan be exploited remotely over a network.
Access complexity
LowNo special conditions are needed.
Authentication
NoneNo login is needed.
Confidentiality
PartialSome data can be read.
Integrity
NoneNothing can be modified.
Availability
NoneAvailability is not affected.

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N. Scored by NVD.

Scoring systemScoreSeverityScored by
CVSS 3.17.5HighCISA (ADP)
CVSS 2.05.0MediumNVD

Official description

The Fingerprints pages in Jenkins before 1.638 and LTS before 1.625.2 might allow remote attackers to obtain sensitive job and build name information via a direct request.

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

The underlying weakness: Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

How developers prevent this class of flaw

  • Compartmentalize the system to have safe areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

More Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities (CWE-200)

Timeline

  1. CVE record published.
  2. Added to CISA's Known Exploited Vulnerabilities catalogue.
  3. Deadline for US federal agencies to remediate, set by CISA.
  4. CISA published its SSVC assessment (exploitation: active, automatable: yes, technical impact: partial).
  5. Record last changed materially (score, affected products, status or references).

References

Other vulnerabilities in Jenkins

All Jenkins vulnerabilities

Recent Exposure of Sensitive Information to an Unauthorized Actor vulnerabilities

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