phpMyAdmin up to 4.6.4/4.4.15.8/4.0.10.17 Username Match Rules 7pk security

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in phpMyAdmin up to 4.6.4/4.4.15.8/4.0.10.17. The impacted element is an unknown function of the component Username Match Rules. The manipulation results in 7pk security. This vulnerability was named CVE-2016-9850. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in phpMyAdmin up to 4.6.4/4.4.15.8/4.0.10.17 (Database Administration Software). Affected is some unknown functionality of the component Username Match Rules. The manipulation with an unknown input leads to a 7pk security vulnerability. CWE is classifying the issue as CWE-254. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in phpMyAdmin. Username matching for the allow/deny rules may result in wrong matches and detection of the username in the rule due to non-constant execution time. All 4.6.x versions (prior to 4.6.5), 4.4.x versions (prior to 4.4.15.9), and 4.0.x versions (prior to 4.0.10.18) are affected.

The bug was discovered 12/06/2016. The weakness was presented 12/11/2016 by Emanuel Bronshtein (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2016-9850 since 12/06/2016. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly 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 4 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 96093 (Debian DLA-757-1 : phpmyadmin 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 176993 (Debian Security Update for phpmyadmin (DLA 1821-1)).

Upgrading to version 4.6.5, 4.4.15.9 or 4.0.10.18 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96093) and SecurityFocus (BID 94529†). See VDB-94038, VDB-94039, VDB-94043 and VDB-94044 for similar entries. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk security
CWE: CWE-254
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: 96093
Nessus Name: Debian DLA-757-1 : phpmyadmin security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103230
OpenVAS Name: phpMyAdmin Multiple Security Vulnerabilities - 04 - Dec16 (Windows)
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: 🔍

Upgrade: phpMyAdmin 4.6.5/4.4.15.9/4.0.10.18

Timelineinfo

11/25/2016 🔍
12/06/2016 +11 days 🔍
12/06/2016 +0 days 🔍
12/10/2016 +4 days 🔍
12/11/2016 +1 days 🔍
12/11/2016 +0 days 🔍
12/24/2016 +13 days 🔍
12/27/2016 +3 days 🔍
10/05/2022 +2108 days 🔍

Sourcesinfo

Product: phpmyadmin.net

Advisory: DLA 1821-1⛔
Researcher: Emanuel Bronshtein
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9850 (🔍)
GCVE (CVE): GCVE-0-2016-9850
GCVE (VulDB): GCVE-100-94068
SecurityFocus: 94529 - phpMyAdmin PMASA-2016-61 Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 12/11/2016 09:12
Updated: 10/05/2022 15:54
Changes: 12/11/2016 09:12 (76), 06/25/2019 16:41 (7), 10/05/2022 15:54 (3)
Complete: 🔍
Cache ID: 216::103

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