Ikiwiki Metadata CGI::FormBuilder improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Ikiwiki. Affected by this vulnerability is the function CGI::FormBuilder of the component Metadata Handler. Such manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-2016-9646. The attack can be launched remotely. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability was found in Ikiwiki (Content Management System) (unknown version). It has been rated as critical. Affected by this issue is the function CGI::FormBuilder of the component Metadata Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

ikiwiki before 3.20161229 incorrectly called the CGI::FormBuilder->field method (similar to the CGI->param API that led to Bugzilla s CVE-2014-1572), which can be abused to lead to commit metadata forgery.

The bug was discovered 12/26/2016. The weakness was disclosed 01/12/2017 as [SECURITY] [DSA 3760-1] ikiwiki security update as confirmed mailinglist post (Bugtraq). The advisory is available at seclists.org. This vulnerability is handled as CVE-2016-9646 since 11/29/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 17 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 96911 (Debian DLA-812-1 : ikiwiki security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276415 (Fedora Security Update for ikiwiki (FEDORA-2017-8873ebdb43)).

Applying a patch is able to eliminate this problem. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (96911). The entries VDB-95283 and VDB-95284 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
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: 96911
Nessus Name: Debian DLA-812-1 : ikiwiki security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for ikiwiki FEDORA-2017-c756d37779
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Timelineinfo

11/29/2016 🔍
12/26/2016 +27 days 🔍
01/12/2017 +17 days 🔍
01/13/2017 +1 days 🔍
01/31/2017 +18 days 🔍
02/01/2017 +1 days 🔍
04/13/2018 +435 days 🔍
07/21/2020 +830 days 🔍

Sourcesinfo

Advisory: [SECURITY] [DSA 3760-1] ikiwiki security update
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9646 (🔍)
GCVE (CVE): GCVE-0-2016-9646
GCVE (VulDB): GCVE-100-95282

OVAL: 🔍

OSVDB: - CVE-2016-9646 - ikiwiki - Metadata Forgery Issue

See also: 🔍

Entryinfo

Created: 01/13/2017 12:11
Updated: 07/21/2020 11:58
Changes: 01/13/2017 12:11 (75), 07/21/2020 11:58 (5)
Complete: 🔍
Cache ID: 216:554:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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