Ceph up to 13.2.3 Bucket input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Ceph up to 13.2.3. It has been rated as problematic. Affected by this vulnerability is an unknown functionality of the component Bucket Handler. This manipulation causes input validation. This vulnerability is registered as CVE-2018-16846. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic was found in Ceph up to 13.2.3. Affected by this vulnerability is an unknown function of the component Bucket Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

It was found in Ceph versions before 13.2.4 that authenticated ceph RGW users can cause a denial of service against OMAPs holding bucket indices.

The bug was discovered 01/15/2019. The weakness was published 01/15/2019 as confirmed bug report (Bugzilla). The advisory is shared at bugzilla.redhat.com. This vulnerability is known as CVE-2018-16846 since 09/11/2018. The attack can be launched remotely. The successful exploitation requires a single authentication. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 277635 (Fedora Security Update for ceph (FEDORA-2019-6a2e72916a)).

Upgrading to version 13.2.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 104742†). Similar entries are available at VDB-121129, VDB-121138, VDB-121139 and VDB-129742. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

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

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Ceph 13.2.4

Timelineinfo

07/09/2018 🔍
09/11/2018 +64 days 🔍
01/15/2019 +126 days 🔍
01/15/2019 +0 days 🔍
01/15/2019 +0 days 🔍
01/16/2019 +1 days 🔍
07/01/2023 +1627 days 🔍

Sourcesinfo

Advisory: RHSA-2019:2538
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-16846 (🔍)
GCVE (CVE): GCVE-0-2018-16846
GCVE (VulDB): GCVE-100-129745
SecurityFocus: 104742 - Red Hat Ceph CVE-2018-10861 Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 01/16/2019 12:12
Updated: 07/01/2023 08:35
Changes: 01/16/2019 12:12 (62), 05/01/2020 16:13 (4), 07/01/2023 08:32 (4), 07/01/2023 08:35 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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