Memcached poisoning in Zimbra Collaboration



Published: 2022-08-08
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-27924
CWE-ID CWE-74
Exploitation vector Network
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
Subscribe
Zimbra Collaboration
Web applications / Webmail solutions

Vendor Synacor Inc.

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Code injection

EUVDB-ID: #VU66156

Risk: Medium

CVSSv3.1: 7.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-27924

CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform cache poisoning.

The vulnerability exists due to improper validation of user-supplied input. A remote non-authenticated attacker can send a specially crafted HTTP request to the affected application and inject arbitrary memcache commands into a targeted instance. As a result, the a remote attacker can overwrite arbitrary cached entries and perform cache poisoning attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zimbra Collaboration: 8.8.15 - 9.0.0 Patch 24

External links

http://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P24
http://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P31.1


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?

Yes. This vulnerability is being exploited in the wild.



###SIDEBAR###