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CVE-2018-1999002

CVE-2018-1999002: Improper Input Validation in Jenkins

7.5

CVSS Score
3.0

Basic Information

CVE ID
CVE-2018-1999002
GHSA ID
GHSA-qf38-f2fr-q4x9
EPSS Score
0.99795%
CWE
CWE-20
Published
5/13/2022
Updated
12/18/2023
KEV Status
No
Technology
TechnologyJava

Technical Details

CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
org.jenkins-ci.main:jenkins-coremaven< 2.121.22.121.2
org.jenkins-ci.main:jenkins-coremaven>= 2.122, < 2.1322.132

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from improper input validation when handling locale parameters in HTTP requests to access files. The Stapler framework's resource resolution in the 'open' method used unvalidated locale components to build file paths, allowing path traversal. The patch adds regex validation for language, country, and variant fields, confirming the vulnerability was in this function. The test cases in Security914Test.java validate() that crafted Accept-Language headers can no longer traverse directories, further confirming this as the attack vector.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

* *r*itr*ry *il* r*** vuln*r**ility *xists in J*nkins *.*** *n* **rli*r, *.***.* *n* **rli*r in t** St*pl*r w** *r*m*work's or*/ko*suk*/st*pl*r/St*pl*r.j*v* t**t *llows *tt**k*rs to s*n* *r**t** *TTP r*qu*sts r*turnin* t** *ont*nts o* *ny *il* on t**

Reasoning

T** vuln*r**ility st*ms *rom improp*r input v*li**tion w**n **n*lin* lo**l* p*r*m*t*rs in *TTP r*qu*sts to ****ss *il*s. T** St*pl*r *r*m*work's r*sour** r*solution in t** 'op*n' m*t*o* us** unv*li**t** lo**l* *ompon*nts to *uil* *il* p*t*s, *llowin*