VDB-12186 · OSVDB 102792 · GCVE-100-12186

Xamarin Mono 2.9 HMAC improper authentication

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.
6.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Xamarin Mono 2.9. It has been declared as critical. This impacts an unknown function of the component HMAC Handler. The manipulation results in improper authentication. There is not any exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Xamarin Mono 2.9. Affected is some unknown processing of the component HMAC Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 01/07/2014 by James Forshaw as Exploiting XML Digital Signature Implementations as not defined article (Magazine). The advisory is available at magazine.hackinthebox.org. The vendor was not involved in the coordination of the public release. Access to the local network is required for this attack to succeed. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at OSVDB (102792†). Entries connected to this vulnerability are available at VDB-12183, VDB-12184 and VDB-12185. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Xamarin

Name

Mono

Version

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

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

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/07/2014 🔍
02/06/2014 +30 days 🔍
03/29/2019 +1877 days 🔍

Sourcesinfo

Advisory: Exploiting XML Digital Signature Implementations
Researcher: James Forshaw
Status: Not defined

GCVE (VulDB): GCVE-100-12186
OSVDB: 102792

See also: 🔍

Entryinfo

Created: 02/06/2014 15:18
Updated: 03/29/2019 15:53
Changes: 02/06/2014 15:18 (42), 03/29/2019 15:53 (1)
Complete: 🔍
Committer: olku
Cache ID: 216::103

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