Vulnerability identifier: #VU66165
Vulnerability risk: Medium
CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:H/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-287
Exploitation vector: Network
Exploit availability: Yes
Vulnerable software:
Zimbra Collaboration
Web applications /
Webmail solutions
Vendor: Synacor Inc.
Description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in MailboxImportServlet. A remote attacker can bypass authentication process and gain unauthorized access to the application.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Zimbra Collaboration: 8.8.15 - 9.0.0 Patch 25
External links
http://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P26
http://wiki.zimbra.com/wiki/Zimbra_Releases/8.8.15/P33#Security_Fixes
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.