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CVE-2025-25064: High Vulnerability in Synacor Zimbra Collaboration Suite

An SQL injection vulnerability in Synacor's Zimbra Collaboration Suite allows authenticated attackers to manipulate parameters, potentially exposing sensitive data. Urgent remediation is needed for impacted versions before extensive exploitation occurs.

HIGHPublic ExploitCVSS 8.8 · Published February 3, 2025

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CVE-2025-25064 is a high-severity SQL injection vulnerability affecting the ZimbraSync Service SOAP endpoint in Synacor's Zimbra Collaboration Suite. This vulnerability allows authenticated attackers to exploit insufficient sanitization of user-supplied parameters, enabling them to inject arbitrary SQL queries. Attackers may leverage this vulnerability to retrieve sensitive email metadata from affected systems.

The CVSS score for this vulnerability is 8.8, indicating a high severity level. This score reflects the potential impact on confidentiality, integrity, and availability, as the attack vector is network-based with low attack complexity and requires only low privileges.

Given the nature of this vulnerability, organizations running affected versions are at significant risk. The urgency for defenders is underscored by the potential for exploitation, which could lead to unauthorized access to sensitive information.

Organizations should prioritize patching immediately. The vulnerability affects Zimbra Collaboration versions 10.0.x prior to 10.0.12 and 10.1.x prior to 10.1.4. Upgrading to the latest versions is crucial to mitigate this risk.

Vulnerability Details

The SQL injection vulnerability is attributed to insufficient sanitization of a user-supplied parameter in Zimbra Collaboration. The affected components are the versions listed above, which have been flagged for high-risk exploitation.

The CWE classification for this vulnerability is CWE-89, which relates to SQL injection flaws. Organizations utilizing Zimbra Collaboration should take immediate action to update their systems.

Technical Analysis

The root cause of this vulnerability lies in the ZimbraSync Service's failure to adequately validate and sanitize user inputs. This oversight allows attackers to construct malicious SQL queries that can manipulate the underlying database.

The attack vector is network-based, enabling remote exploitation without the need for physical access to the server. While the attack complexity is classified as low, the privilege required is also low, which facilitates easier exploitation by unauthorized users.

Successful exploitation can lead to high impacts on confidentiality, integrity, and availability of data stored within the Zimbra system. This highlights the critical nature of prompt remediation.

Risk & Impact Analysis

Risk to organizations includes the potential for significant data breaches through unauthorized access to sensitive email content. The blast radius is considerable, affecting all users within the organization who utilize the affected versions of Zimbra Collaboration.

Given the high CVSS score and the existence of public proof-of-concept exploits, organizations should consider this vulnerability a critical priority within their security posture. The likelihood of exploitation is further emphasized by the growing trend of SQL injection attacks across various platforms.

Signal

Status

Known Exploit

Yes

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The vulnerability affects Zimbra Collaboration versions 10.0.x prior to 10.0.12 and 10.1.x prior to 10.1.4. Organizations should ensure that they have upgraded to at least these versions to mitigate the risk associated with this vulnerability.

Mitigation & Remediation

To remediate this vulnerability, organizations should apply patches provided by Synacor for Zimbra Collaboration Suite. Specifically, ensure that systems are updated to versions 10.0.12 or 10.1.4 or later. In cases where immediate patching is not feasible, organizations should consider alternative measures such as limiting access to the SOAP endpoint and monitoring logs for unusual activity.

For further assistance, organizations may consider engaging in penetration testing to identify potential vulnerabilities and enhance their security posture.

Detection Guidance

Organizations should monitor logs for suspicious activity, particularly with respect to the ZimbraSync Service. Look for anomalies in SQL query patterns and unexpected user access to sensitive data. Implementing network-based intrusion detection systems can also help in identifying potential exploitation attempts.

AppSecure Threat Intelligence Insight

The exploitation of SQL injection vulnerabilities remains a persistent threat in the cybersecurity landscape. The high severity of this vulnerability serves as a reminder for organizations to adopt comprehensive application security practices.

Regular security assessments, including penetration testing methodologies, can help organizations identify and mitigate vulnerabilities before they are exploited.

For organizations utilizing cloud services, a focus on cloud penetration testing can provide insights into additional security measures necessary to protect sensitive data.

Finally, organizations should consider engaging in vulnerability management programs to ensure a proactive approach to handling security risks.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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