Vulnerability Monitor

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CVE-2017-18365

The Management Console in GitHub Enterprise 2.8.x before 2.8.7 has a deserialization issue that allows unauthenticated remote attackers to execute arbitrary code. This occurs because the enterprise session secret is always the same, and can be found in the product's source code. By sending a crafted cookie signed with this secret, one can call Marshal.load with arbitrary data, which is a problem because the Marshal data format allows Ruby objects.

Published

2019-03-28T06:29:00.267

Last Modified

2024-11-21T03:19:56.347

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 9.8 (CRITICAL)

CVSSv2 Vector

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

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-502

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	github	github	< 2.8.7	Yes
Application	github	github	2.8.7	Yes

References

https://enterprise.github.com/releases/2.8.7/notes Vendor Advisory ([email protected])
https://www.exablue.de/blog/2017-03-15-github-enterprise-remote-code-execution.html Exploit, Third Party Advisory ([email protected])
https://enterprise.github.com/releases/2.8.7/notes Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.exablue.de/blog/2017-03-15-github-enterprise-remote-code-execution.html Exploit, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)