CVE-2008-4556 in Solaris
Summary
by MITRE
Stack-based buffer overflow in the adm_build_path function in sadmind in Sun Solstice AdminSuite on Solaris 8 and 9 allows remote attackers to execute arbitrary code via a crafted request.
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Analysis
by VulDB Data Team • 05/25/2025
The vulnerability identified as CVE-2008-4556 represents a critical stack-based buffer overflow within the adm_build_path function of sadmind, a component of Sun Solstice AdminSuite running on Solaris 8 and 9 operating systems. This flaw exists in the remote administration service that handles network requests for system management tasks, making it particularly dangerous as it can be exploited over the network without requiring local access. The vulnerability stems from insufficient input validation within the adm_build_path function, which processes path construction for administrative operations. When processing specially crafted requests, the function fails to properly bounds-check input data before copying it to a fixed-size stack buffer, creating an exploitable condition that can be leveraged by remote attackers to overwrite adjacent stack memory.
The technical implementation of this vulnerability aligns with CWE-121, which categorizes stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent stack memory locations. The flaw specifically manifests when the sadmind service receives a malformed request containing excessive data that exceeds the allocated buffer space. This condition enables attackers to overwrite return addresses, function pointers, and other critical stack data, potentially allowing arbitrary code execution with the privileges of the sadmind process. The vulnerability affects the Solaris 8 and 9 operating systems, which were widely deployed in enterprise environments, making this a significant concern for organizations running legacy systems. The attack vector is particularly concerning as it requires no authentication for exploitation, making it an attractive target for automated attacks.
The operational impact of this vulnerability extends beyond simple code execution, as successful exploitation can lead to complete system compromise and unauthorized access to sensitive administrative functions. Attackers who successfully exploit this vulnerability can gain the ability to perform administrative operations on affected systems, potentially leading to data theft, system manipulation, or further network penetration. The sadmind service typically runs with elevated privileges, meaning that exploitation could provide attackers with root-level access to affected systems. This makes the vulnerability particularly dangerous in enterprise environments where Solaris systems may be running critical services and applications. The vulnerability also represents a significant risk to system availability, as attackers could potentially cause system crashes or denial of service conditions through malformed requests.
Mitigation strategies for CVE-2008-4556 should focus on immediate patching of affected systems with the appropriate Sun security updates, as these patches address the underlying buffer overflow condition in the adm_build_path function. Organizations should also implement network segmentation and access controls to limit exposure of the sadmind service to untrusted networks, as this can significantly reduce the attack surface. The use of intrusion detection systems and network monitoring can help detect anomalous requests that may indicate exploitation attempts. Additionally, system administrators should consider disabling the sadmind service entirely if it is not required for operations, as this eliminates the attack vector entirely. From a defensive perspective, implementing proper input validation and bounds checking in all applications can help prevent similar vulnerabilities from being introduced in the future. Organizations should also consider implementing the principle of least privilege and ensuring that administrative services are properly configured with appropriate access controls. The vulnerability highlights the importance of maintaining up-to-date security patches and the risks associated with running legacy operating systems that may not receive current security updates. This case study serves as a reminder of the critical importance of vulnerability management and the potential impact of buffer overflow vulnerabilities in enterprise environments, particularly those involving remote administration services.