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High severity · published May 17, 2017
CVE-2016-3403
Multiple cross-site request forgery (CSRF) vulnerabilities in the Admin Console in Zimbra Collaboration before 8.6.0 Patch 8 allow remote attackers to hijack the authentication of…
8.8
CVSS
1.4%
EPSS
No
On KEV
Description
Multiple cross-site request forgery (CSRF) vulnerabilities in the Admin Console in Zimbra Collaboration before 8.6.0 Patch 8 allow remote attackers to hijack the authentication of administrators for requests that (1) add, (2) modify, or (3) remove accounts by leveraging failure to use of a CSRF token and perform referer header checks, aka bugs 100885 and 100899.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ZC
Zimbra Collaboration Suite · Synacor
through 8.6.0 · source: NVD
Affected product
ZC
Zimbra Collaboration Suite
Synacor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-3403
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-3403
Exploit
http://seclists.org/fulldisclosure/2017/Jan/30
Third Party Advisory
http://www.securityfocus.com/bid/95383
Issue Tracking
https://bugzilla.zimbra.com/show_bug.cgi?id=100885
Issue Tracking
https://bugzilla.zimbra.com/show_bug.cgi?id=100899
Exploit
https://sysdream.com/news/lab/2017-01-12-cve-2016-3403-multiple-csrf-in-zimbra-administration-interface/
Patch
https://wiki.zimbra.com/wiki/Zimbra_Releases/8.6_Patch_8
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