CVE-1999-1319 in IRIX
Summary
by MITRE
vulnerability in object server program in sgi irix 5.2 through 6.1 allows remote attackers to gain root privileges in certain configurations.
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Analysis
by VulDB Data Team • 04/03/2025
The vulnerability described in CVE-1999-1319 represents a critical privilege escalation flaw within the object server program of SGI IRIX operating systems spanning versions 5.2 through 6.1. This issue resides in the fundamental security architecture of the system, where the object server component fails to properly validate input parameters and access controls during remote operations. The vulnerability manifests when specific configurations are present, allowing remote attackers to exploit weaknesses in the program's privilege handling mechanisms. This flaw operates at the kernel level or system service layer, where the object server program typically manages object references and maintains system integrity. The vulnerability is classified under CWE-264, which encompasses permissions, privileges, and access control issues, specifically targeting the improper handling of system-level privileges. Attackers can leverage this weakness to execute arbitrary code with root-level privileges, effectively compromising the entire system.
The technical implementation of this vulnerability stems from insufficient input validation and privilege separation within the object server program. When remote connections are established to the object server, the program fails to properly authenticate or authorize incoming requests before executing privileged operations. This creates a pathway for malicious actors to craft specially formatted requests that bypass normal access controls and escalate their privileges. The flaw typically involves improper handling of object references or memory management operations where the system does not adequately verify the integrity of remote inputs. According to ATT&CK framework, this vulnerability maps to T1068, which covers 'Exploitation for Privilege Escalation' and T1072, covering 'Software Deployment Tools' where the system's object server component may be considered a deployment mechanism for system-level operations. The vulnerability is particularly dangerous because it operates without requiring local access or authentication, making it exploitable over the network.
The operational impact of CVE-1999-1319 extends far beyond simple privilege escalation, as it provides attackers with complete system compromise capabilities. Once successfully exploited, attackers can gain root access to the system, enabling them to modify critical system files, install backdoors, extract sensitive data, and establish persistent access. The vulnerability affects systems where the object server program is actively running and accessible over the network, which in many IRIX environments includes various network services and distributed computing features. Organizations using affected IRIX versions face significant risk of data breaches, system hijacking, and potential lateral movement within their networks. The impact is particularly severe in environments where IRIX systems serve as network infrastructure components or contain sensitive data repositories. Security professionals should note that this vulnerability represents a classic example of a remote code execution flaw that can be leveraged for comprehensive system takeover. The vulnerability's exploitation requires minimal prerequisites and can be automated, making it particularly attractive to threat actors. Network segmentation and firewall rules that restrict access to the object server program can provide partial mitigation, but the most effective approach involves immediate patching or system replacement.
Mitigation strategies for CVE-1999-1319 require immediate action due to the severity of the vulnerability. System administrators should prioritize applying vendor patches or upgrading to supported IRIX versions that address the privilege escalation flaw. The vulnerability's nature makes traditional network monitoring solutions insufficient for detection, as the exploitation occurs through legitimate network services. Organizations should implement comprehensive network segmentation to limit access to systems running the vulnerable object server program and consider disabling unnecessary network services. Security measures should include regular vulnerability assessments to identify other potential entry points and ensure proper privilege separation within the system. According to industry best practices and NIST guidelines for system hardening, this vulnerability requires immediate attention as it represents a critical security risk that can be exploited without user interaction. The remediation process should also include monitoring for signs of exploitation attempts, such as unusual network traffic patterns or unauthorized system access logs, though detection remains challenging due to the legitimate nature of the object server operations. Regular security audits and access control reviews are essential to maintain system integrity and prevent exploitation of similar vulnerabilities in the future.