CVE-2007-2617 in Net Connect Software
Summary
by MITRE
srsexec in Sun Remote Services (SRS) Net Connect Software Proxy Core package in Sun Solaris 10 does not enforce file permissions when opening files, which allows local users to read the first line of arbitrary files via the -d and -v options.
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Analysis
by VulDB Data Team • 08/26/2019
The vulnerability identified as CVE-2007-2617 affects the srsexec component within Sun Remote Services Net Connect Software Proxy Core package on Sun Solaris 10 systems. This flaw represents a critical security weakness in the file access control mechanisms of the software, specifically within the proxy core functionality that handles remote service execution. The vulnerability stems from improper enforcement of file permissions during file operations, creating a significant attack vector for local privilege escalation and information disclosure.
The technical implementation of this vulnerability resides in the srsexec utility's handling of command-line arguments, particularly when utilizing the -d and -v options. These options are designed to process and display file contents, but the software fails to validate or enforce proper file access controls when opening target files. This design flaw allows malicious local users to manipulate the utility's behavior to read the first line of any file on the system regardless of file permissions or ownership. The vulnerability essentially bypasses the standard unix file permission model, creating a path for unauthorized information disclosure.
From an operational impact perspective, this vulnerability poses significant risks to system security and data integrity. Local attackers can exploit this weakness to extract sensitive information from system files, configuration files, and potentially even password files or other security-relevant data. The ability to read the first line of arbitrary files provides attackers with a foothold for further reconnaissance and potential privilege escalation. The vulnerability affects the core proxy functionality of the Solaris 10 system, potentially compromising the security of remote services and network communications that depend on this software component.
The vulnerability aligns with CWE-276, which addresses improper file permissions, and represents a classic example of inadequate access control implementation. From an attack framework perspective, this vulnerability maps to ATT&CK technique T1005, where adversaries attempt to gather data from local systems. The flaw also relates to privilege escalation techniques and information gathering activities that attackers commonly employ to compromise system integrity. Organizations running affected Solaris 10 systems face potential exposure to attackers who can leverage this vulnerability to extract sensitive information without proper authorization.
Mitigation strategies should include immediate patching of the affected software components through official Sun Microsystems updates or security patches. System administrators should also implement additional monitoring to detect unauthorized usage of the srsexec utility and review file access logs for suspicious activity. The principle of least privilege should be enforced by restricting access to the affected software components and ensuring that only authorized users can execute the utility with elevated privileges. Additionally, implementing proper file permission controls and regular security audits can help identify and remediate similar vulnerabilities in other system components.