Vulnerability Report

CVE-2021-41598

Title: Github Enterprise Server

Other

Proof Of Concept

No public PoC currently indexed for CVE-2021-41598.

CWE Category CWE-451
Published Date Jan 25, 2022
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 8.8 CVSS v3.1
Exploit Probability (EPSS)
1.15%

Vulnerability Summary

CVE-2021-41598: A UI misrepresentation vulnerability was identified in GitHub Enterprise Server that allowed more permissions to be granted during a GitHub App's user-authorization web flow than was displayed to the user during approval. To exploit this vulnerability, an attacker would need to create a GitHub App on the instance and have a user authorize the application through the web authentication flow. All permissions being granted would properly be shown during the first authorization, but if the user later updated the set of repositories the app was installed on after the GitHub App had configured additional user-level permissions, those additional permissions would not be displayed, leading to more permissions being granted than the user potentially intended. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.3 and was fixed in versions 3.2.5, 3.1.13, 3.0.21. This vulnerability was reported via the GitHub Bug Bounty program.

Impacted Vendors

G
github 1
B
blackberry 1
M
microfocus 1

Reference Links

https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.21 https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.13 https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.5 https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.21 https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.13 https://docs.github.com/en/enterprise-server%403.2/admin/release-notes#3.2.5
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
6.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-41598 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.