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githubGitHub Advisory DatabaseGHSA-QRM8-CW73-R9W8
HistoryMay 24, 2022 - 5:15 p.m.

RCE vulnerability in Jenkins AWS SAM Plugin

2022-05-2417:15:35
CWE-502
GitHub Advisory Database
github.com
15
jenkins
aws sam plugin
remote code execution
vulnerability
yaml parser
aws sam deploy application
software

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.008

Percentile

81.6%

AWS SAM Plugin 1.2.2 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types. This results in a remote code execution (RCE) vulnerability exploitable by users able to configure a job or control the contents of a previously configured "AWS SAM deploy application" build step’s YAML SAM template file (template.yaml or equivalent) file.

AWS SAM Plugin 1.2.3 configures its YAML parser to only instantiate safe types.

Affected configurations

Vulners
Node
io.jenkins.pluginsaws-samRange≀1.2.2
VendorProductVersionCPE
io.jenkins.pluginsaws-sam*cpe:2.3:a:io.jenkins.plugins:aws-sam:*:*:*:*:*:*:*:*

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.008

Percentile

81.6%

Related for GHSA-QRM8-CW73-R9W8