Kerio Unified Threat Management 9.1.0 CSRF Prevention 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.
5.8$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Kerio Unified Threat Management 9.1.0. This impacts an unknown function of the component CSRF Prevention. This manipulation causes privileges management. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Kerio Unified Threat Management 9.1.0. Affected by this vulnerability is an unknown code of the component CSRF Prevention. 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 08/24/2016. The weakness was disclosed 09/22/2016 by R. Freingruber and R. Tavakoli with SEC Consult as 20160922-0 as not defined mailinglist post (Full-Disclosure). The advisory is shared at seclists.org. The attack can be launched remotely. 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:

The PHP scripts contain code to protect against CSRF (Cross Site Request Forgery) attacks. Because of the wrong usage of PHP binary operations and comparisons it's possible to bypass this check. That means that an attacker can trigger requests from other websites which will be handled by Kerio Control. This vulnerability allows to exploit the remote code execution vulnerability from the Internet to break into a network.

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.

Upgrading to version 9.1.3 eliminates this vulnerability.

The entries VDB-91836, VDB-91838, VDB-91839 and VDB-91840 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.8

VulDB Base Score: 6.3
VulDB Temp Score: 5.8
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: 🔍

0-Day Time: 🔍

Upgrade: Unified Threat Management 9.1.3

Timelineinfo

08/24/2016 🔍
09/22/2016 +29 days 🔍
09/22/2016 +0 days 🔍
08/09/2017 +321 days 🔍

Sourcesinfo

Vendor: kerio.com

Advisory: 20160922-0
Researcher: R. Freingruber, R. Tavakoli
Organization: SEC Consult
Status: Not defined

GCVE (VulDB): GCVE-100-91837
See also: 🔍

Entryinfo

Created: 09/22/2016 12:23
Updated: 08/09/2017 14:07
Changes: 09/22/2016 12:23 (45), 08/09/2017 14:07 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!