#VU13068 Assertion failure in Ceph - CVE-2017-16818

Vulnerability identifier: #VU13068

Vulnerability risk: Low

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-16818

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ceph
Server applications / Other server solutions

Vendor: Red Hat Inc.

Description

The vulnerability allows a remote authenticated attacker to cause DoS condition on the target system.

The vulnerability exists due to assertion failure and application exit. A remote attacker can leverage "full" privileges, post an invalid profile to the admin API, related to rgw/rgw_iam_policy.cc, rgw/rgw_basic_types.h, and rgw/rgw_iam_types.h and cause the service to crash.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Ceph: 12.1.0 - 12.2.1

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External links
https://github.com/ceph/ceph/commit/b3118cabb8060a8cc6a01c4e8264cb18e7b1745a

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.