Rechercher
Contactez-nous Suivez-nous sur Twitter En francais English Language
 

De la Théorie à la pratique





















Freely subscribe to our NEWSLETTER

Newsletter FR

Newsletter EN

Vulnérabilités

Unsubscribe

Vigil@nce: memcached, information disclosure via stats malloc

May 2009 by Vigil@nce

SYNTHESIS OF THE VULNERABILITY

An attacker can connect to the TCP port of memcached in order to obtain information to bypass ASLR.

Severity: 2/4

Consequences: data reading

Provenance: intranet client

Means of attack: 1 attack

Ability of attacker: technician (2/4)

Confidence: confirmed by the editor (5/5)

Diffusion of the vulnerable configuration: high (3/3)

Creation date: 20/05/2009

IMPACTED PRODUCTS

- Mandriva Corporate
- Mandriva Linux
- Unix - plateform

DESCRIPTION OF THE VULNERABILITY

The ASLR (Address Space Layout Randomization) feature randomizes various sections (stack, heap and libraries) of a process. Attacks using assembler code are thus harder to implement.

The memcached daemon provides distributed memory caching. It listens on the port 11211/tcp.

The "stats malloc" command of memcached indicates allocated memory areas.

A local attacker can therefore obtain information about the memory structure of a process in order to bypass ASLR.

CHARACTERISTICS

Identifiers: CVE-2009-1494, MDVSA-2009:105, VIGILANCE-VUL-8724 http://vigilance.fr/vulnerability/memcached-information-disclosure-via-stats-malloc-8724




See previous articles

    

See next articles