CVE-2022-27924: Synacor Zimbra Collaboration Suite (ZCS) Command Injection Vulnerability

CVE-2022-27924 · Severity: critical · CVSS 7.5 · Exploited in the wild · Published 2022-08-04

Synacor Zimbra Collaboration Suite (ZCS) allows an unauthenticated attacker to inject arbitrary memcache commands into a targeted instance. These commands are processed without proper escaping, enabling the attacker to overwrite arbitrary cached entries.

Technologies: Synacor Zimbra Collaboration Suite (ZCS). Vendors: Synacor.

Quick answers

Is CVE-2022-27924 exploited in the wild?
Yes. CVE-2022-27924 is known to be exploited in the wild, first recorded on 4 August 2022. Treat it as urgent.
How severe is CVE-2022-27924?
Critical severity, with a CVSS score of 7.5, published 4 August 2022.
Which products and versions are affected?
Synacor Zimbra Collaboration Suite (ZCS) 8.8.15, 9.0.0.
Is there a fix for CVE-2022-27924?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2022-27924 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2022-27924?
Check whether you run Synacor Zimbra Collaboration Suite (ZCS). Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Synacor Zimbra Collaboration Suite (ZCS) 8.8.15, 9.0.0

Timeline

  • 2022-05-03: disclosed: Initial analysis by NIST
  • 2022-08-04: kev added: Added to CISA Known Exploited Vulnerabilities Catalog

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