Vulnerability identifier: #VU84494

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-48432

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Zimbra Collaboration
Web applications / Webmail solutions

Vendor: Synacor Inc.

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to the way authentication token is handled. A remote attacker can obtain authentication token and gain access to another user's account.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Zimbra Collaboration: 8.8.15 - 10.0.5

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External links
http://wiki.zimbra.com/wiki/Security_Center#ZCS_10.0.6_Released
http://wiki.zimbra.com/wiki/Security_Center#ZCS_9.0.0_Patch_38_Released
http://wiki.zimbra.com/wiki/Security_Center#ZCS_8.8.15_Patch_45_Released

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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.