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CVE-2024-9487

GitHub Enterprise Server vulnerability

9.1 CRITICALEPSS 25.6%
  1. Published10 Oct 2024

Description

An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed resulting in unauthorized provisioning of users and access to the instance. Exploitation required the encrypted assertions feature to be enabled, and the attacker would require direct network access as well as a signed SAML response or metadata document. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.15 and was fixed in versions 3.11.16, 3.12.10, 3.13.5, and 3.14.2. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

GitHub Enterprise Server≥ 3.12.0 < 3.12.10 · ≥ 3.13.0 < 3.13.5 · ≥ 3.14.0 < 3.14.2 · < 3.11.16

Remediation

Fixed in
GitHub Enterprise Server≥ 3.12.10

Frequently asked

Is CVE-2024-9487 being actively exploited?

CVE-2024-9487 is not in the CISA KEV catalog. Its EPSS exploit probability is 25.6%.

How severe is CVE-2024-9487?

CVE-2024-9487 has a CVSS 3.1 base score of 9.1, rated critical. EPSS estimates a 25.6% probability of exploitation.

Which products are affected by CVE-2024-9487?

Affected products include GitHub Enterprise Server.

How do I fix CVE-2024-9487?

Upgrade affected software to a fixed version, for example GitHub Enterprise Server 3.12.10 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2024-9487 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.