Relevanssi Premium Plugin 1.14.4 on WordPress Import/Export privileges management

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Relevanssi Premium Plugin 1.14.4 on WordPress. It has been classified as critical. Affected by this issue is some unknown functionality of the component Import/Export. This manipulation causes privileges management. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability has been found in Relevanssi Premium Plugin 1.14.4 on WordPress (WordPress Plugin) and classified as critical. Affected by this vulnerability is an unknown code block of the component Import/Export. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 10/07/2016. The weakness was released 11/17/2016 by Glyn Wintle as Unserialization vulnerability in Relevanssi Premium could allow admins to execute arbitrary code (in some circumstances) (WordPress plugin) as confirmed mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. The public release was coordinated with the project team. The exploitation appears to be easy. The attack can be launched remotely. The requirement for exploitation is a single authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue. The advisory points out:

If logged in as an admin on any site you can go to settings, Relevanssi Premium, import or export options. This is a text field that accepts a serialised PHP object. It is possible to submit a string that contains an evil encoded object that executes arbitrary code (if there are classes available with particular methods such as __destruct).

The vulnerability was handled as a non-public zero-day exploit for at least 26 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.14.6.1 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

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

Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍

Upgrade: Relevanssi Premium Plugin 1.14.6.1

Timelineinfo

10/07/2016 🔍
11/01/2016 +25 days 🔍
11/02/2016 +1 days 🔍
11/17/2016 +15 days 🔍
11/21/2016 +4 days 🔍
06/05/2019 +926 days 🔍

Sourcesinfo

Advisory: Unserialization vulnerability in Relevanssi Premium could allow admins to execute arbitrary code (in some circumstances) (WordPress plugin)
Researcher: Glyn Wintle
Status: Confirmed
Coordinated: 🔍

GCVE (VulDB): GCVE-100-93721

Entryinfo

Created: 11/21/2016 14:27
Updated: 06/05/2019 14:07
Changes: 11/21/2016 14:27 (48), 06/05/2019 14:07 (2)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Interested in the pricing of exploits?

See the underground prices here!