CVE-2009-3102 in Zrm For My Sql
Summary
by MITRE
The doHotCopy subroutine in socket-server.pl in Zmanda Recovery Manager (ZRM) for MySQL 2.x before 2.1.1 allows remote attackers to execute arbitrary commands via vectors involving a crafted $MYSQL_BINPATH variable.
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Analysis
by VulDB Data Team • 08/22/2021
The vulnerability identified as CVE-2009-3102 represents a critical command injection flaw within the Zmanda Recovery Manager for MySQL version 2.x prior to 2.1.1. This issue specifically resides in the doHotCopy subroutine of the socket-server.pl component, which serves as a crucial element in the backup and recovery operations for MySQL databases. The vulnerability arises from insufficient input validation and sanitization mechanisms that fail to properly handle user-supplied data, creating an exploitable condition that can be leveraged by remote attackers to execute arbitrary code on the affected system.
The technical implementation of this vulnerability stems from the improper handling of the $MYSQL_BINPATH variable within the socket-server.pl script. When the doHotCopy subroutine processes backup operations, it incorporates user-provided input directly into system command execution contexts without adequate sanitization or validation. This creates a classic command injection vulnerability where malicious actors can manipulate the $MYSQL_BINPATH variable to inject additional commands that will be executed with the privileges of the ZRM service account. The flaw essentially allows an attacker to bypass normal access controls and execute arbitrary system commands on the target server, potentially leading to complete system compromise.
From an operational impact perspective, this vulnerability presents a severe threat to database environments relying on Zmanda Recovery Manager for MySQL. Remote attackers can exploit this flaw to gain unauthorized access to the system, potentially leading to data theft, system manipulation, or complete service disruption. The attack surface extends beyond simple command execution to include potential privilege escalation opportunities, as the compromised system may have elevated permissions required for database operations. The vulnerability affects organizations using ZRM versions 2.0 through 2.1.0, making it particularly concerning for environments where patch management processes are delayed or incomplete.
This vulnerability aligns with CWE-77 and CWE-94 categories, specifically representing a command injection flaw that allows arbitrary code execution through improper input handling. The attack pattern follows the typical remote code execution methodology described in the MITRE ATT&CK framework under the technique T1059.001 for command and scripting interpreter. Organizations affected by this vulnerability should prioritize immediate remediation through the available patch updates provided by Zmanda, while also implementing network segmentation and access controls to limit potential exploitation. The remediation process should include thorough verification of the patched installation and monitoring for any signs of compromise during the update process, as the vulnerability could have been exploited prior to patch deployment.