Cross-Site Request Forgery Vulnerability in Zimbra Collaboration Server Mail Interface
CVE-2015-6541

8.8HIGH

Key Information:

Vendor

Zimbra

Status
Zimbra Collaboration Server
Vendor
CVE Published:
8 April 2016

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2015-6541?

The Zimbra Collaboration Server (ZCS) contains multiple vulnerabilities in its Mail interface that can be exploited via cross-site request forgery (CSRF) attacks. These vulnerabilities allow remote attackers to hijack user authentication during SOAP requests, enabling unauthorized changes to user account preferences. Users are at risk if using versions prior to 8.5, which do not incorporate necessary security measures to prevent such exploitations. It is crucial for organizations to upgrade their ZCS installations and implement additional security practices to safeguard against these vulnerabilities.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2015-6541 - Proof of Concept

References

https://wiki.zimbra.com/wiki/Security/Collab/86#Notes_fro...
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http://seclists.org/fulldisclosure/2016/Feb/121
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https://www.exploit-db.com/exploits/39500/
exploitx_refsource_EXPLOIT-DB

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.