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Description
A session fixation vulnerability exists in Jenkins SAML Plugin 1.0.6 and earlier in SamlSecurityRealm.java that allows unauthorized attackers to impersonate another users if they can control the pre-authentication session. SAML Plugin 1.0.7 invalidates the previous session during login and creates a new one.
Basic information
Type
reviewed
Severity
medium Advisory on GitHub
Open advisory ↗ Repository advisory
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Source code
Browse source ↗ Published (advisory)
2022-05-14 03:07:02 UTC
Updated
2023-12-06 15:06:31 UTC
GitHub reviewed
2022-12-12 17:10:16 UTC
NVD published
2018-06-26
EPSS Score
Score
Percentile
0.03%
8.76%
CVSS Scores
Base score
Version
Severity
Vector
6.5
3.0
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CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
CWEs
CWE id
Name
CWE-384
Session Fixation
Affected packages (1)
Vulnerable version ranges and first patched releases as published by GitHub.
Ecosystem
Package
Vulnerable range
First patched
Vulnerable functions
maven
org.jenkins-ci.plugins:saml <= 1.0.6
1.0.7
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cvelogic
Threat Intelligence