Vulnerability identifier: #VU31401

Vulnerability risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-10517

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Redis
Server applications / Database software

Vendor: Salvatore Sanfilippo

Description

The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.

networking.c in Redis before 3.2.7 allows "Cross Protocol Scripting" because it lacks a check for POST and Host: strings, which are not valid in the Redis protocol (but commonly occur when an attack triggers an HTTP request to the Redis TCP port).

Mitigation
Install update from vendor's website.

Vulnerable software versions

Redis: 3.2.0 - 3.2.6

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External links
http://www.securityfocus.com/bid/101572
http://github.com/antirez/redis/commit/874804da0c014a7d704b3d285aa500098a931f50
http://raw.githubusercontent.com/antirez/redis/3.2/00-RELEASENOTES
http://www.reddit.com/r/redis/comments/5r8wxn/redis_327_is_out_important_security_fixes_inside/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.