Is CVE-2021-41598 in the CISA KEV catalog?

No. CVE-2021-41598 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41598?

CVE-2021-41598 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-41598?

CVE-2021-41598 has an EPSS score of 1.15% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41598?

Upgrade enterprise server to 3.2.5 or later.

CVE & CISA-KEV Catalog

CVE-2021-41598

HIGH

8.8

CVSS v3

NVD

Description

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.

CWE-451

How to fix

Remediation Available

enterprise serverNVD

Affected:>= 3.2.0, < 3.2.5Fixed in:3.2.5CVE-2021-41598derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.15%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Other references3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.