VDB-110920 · CVE-2017-16818 · Qualys 171533

Ceph up to 12.1.0 RADOS Gateway rgw/rgw_iam_policy.cc 7pk security

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

A vulnerability has been found in Ceph up to 12.1.0 and classified as problematic. This vulnerability affects an unknown code block of the file rgw/rgw_iam_policy.cc of the component RADOS Gateway. The manipulation with an unknown input leads to a 7pk security vulnerability. The CWE definition for the vulnerability is CWE-254. As an impact it is known to affect availability. CVE summarizes:

RADOS Gateway in Ceph 12.1.0 through 12.2.1 allows remote authenticated users to cause a denial of service (assertion failure and application exit) by leveraging "full" (not necessarily admin) privileges to 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.

The bug was discovered 11/21/2017. The weakness was published 12/20/2017 (Website). The advisory is shared for download at lists.fedoraproject.org. This vulnerability was named CVE-2017-16818 since 11/14/2017. The exploitation appears to be easy. The attack can be initiated remotely. The requirement for exploitation is a single authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1211.

The vulnerability was handled as a non-public zero-day exploit for at least 21 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105932 (Fedora 27 : 1:ceph (2017-97b730736f)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171533 (OpenSUSE Security Update for ceph (openSUSE-SU-2018:2479-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105932). Similar entry is available at 114784.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: 7pk security
CWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Current Price Estimation: 🔍

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Nessus ID: 105932
Nessus Name: Fedora 27 : 1:ceph (2017-97b730736f)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 55002
OpenVAS Name: Fedora Update for ceph FEDORA-2017-97b730736f
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

11/14/2017 🔍
11/21/2017 +7 days 🔍
12/12/2017 +21 days 🔍
12/20/2017 +8 days 🔍
12/20/2017 +0 days 🔍
12/21/2017 +1 days 🔍
01/15/2018 +25 days 🔍
01/18/2023 +1829 days 🔍

Sourcesinfo

Advisory: FEDORA-2017-97b730736f
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-16818 (🔍)
See also: 🔍

Entryinfo

Created: 12/21/2017 08:43
Updated: 01/18/2023 14:09
Changes: 12/21/2017 08:43 (71), 12/28/2019 10:21 (3), 01/18/2023 14:05 (5), 01/18/2023 14:07 (1), 01/18/2023 14:09 (1)
Complete: 🔍
Cache ID: 18:86D:103

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