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GoogleOSV:GO-2022-1178

HistoryDec 22, 2022 - 9:01 p.m.

JWT leak in github.com/bradleyfalzon/ghinstallation

2022-12-2221:01:01

Google

osv.dev

github

jwt

leak

risk

authentication

requests

software

5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

LOW

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

4.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%

JSON

Errors returned by ghinstallation.Transport can include the JWT used for the failed operation. If the error is exposed to an untrusted party, this JWT could be extracted and used to authenticate further requests.

CPENameOperatorVersion
github.com/bradleyfalzon/ghinstallationlt1.1.2-0.20210308182858-d24f14f8be70

CPE	Name	Operator	Version
	github.com/bradleyfalzon/ghinstallation	lt	1.1.2-0.20210308182858-d24f14f8be70

References

docs.github.com/en/developers/apps/building-github-apps/authenticating-with-github-apps#authenticating-as-an-installation

github.com/bradleyfalzon/ghinstallation/commit/d24f14f8be70d94129d76026e8b0f4f9170c8c3e

github.com/bradleyfalzon/ghinstallation/security/advisories/GHSA-h4q8-96p6-jcgr

5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

LOW

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

4.6 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%

JSON

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