Ceph up to 12.2.3/13.0.1 rgw_civetweb.cc RGWCivetWeb::init_env HTTP Header null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Ceph up to 12.2.3/13.0.1. Affected is the function RGWCivetWeb::init_env of the file rgw_civetweb.cc. Executing a manipulation as part of HTTP Header can lead to null pointer dereference. The identification of this vulnerability is CVE-2018-7262. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Ceph up to 12.2.3/13.0.1. It has been declared as problematic. This vulnerability affects the function RGWCivetWeb::init_env of the file rgw_civetweb.cc. The manipulation as part of a HTTP Header leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. CVE summarizes:

In Ceph before 12.2.3 and 13.x through 13.0.1, the rgw_civetweb.cc RGWCivetWeb::init_env function in radosgw doesn't handle malformed HTTP headers properly, allowing for denial of service.

The bug was discovered 02/18/2018. The weakness was shared 03/19/2018 (Website). The advisory is shared for download at lists.fedoraproject.org. This vulnerability was named CVE-2018-7262 since 02/20/2018. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 29 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 110123 (SUSE SLED12 / SLES12 Security Update : ceph (SUSE-SU-2018:1417-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE 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 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (110123). The entry VDB-110920 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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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Nessus ID: 110123
Nessus Name: SUSE SLED12 / SLES12 Security Update : ceph (SUSE-SU-2018:1417-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 10732
OpenVAS Name: Fedora Update for ceph FEDORA-2018-ed907ef9a0
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: github.com

Timelineinfo

02/18/2018 🔍
02/20/2018 +2 days 🔍
03/19/2018 +27 days 🔍
03/19/2018 +0 days 🔍
03/20/2018 +1 days 🔍
05/23/2018 +64 days 🔍
05/25/2018 +2 days 🔍
02/22/2023 +1734 days 🔍

Sourcesinfo

Product: github.com

Advisory: RHSA-2018:0546
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-7262 (🔍)
GCVE (CVE): GCVE-0-2018-7262
GCVE (VulDB): GCVE-100-114784
See also: 🔍

Entryinfo

Created: 03/20/2018 07:25
Updated: 02/22/2023 11:36
Changes: 03/20/2018 07:25 (74), 01/15/2020 07:08 (3), 02/22/2023 11:36 (5)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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