CVE-2008-1779 in Solaris
Summary
by MITRE
Sun Solaris 8, 9, and 10 allows "remote privileged" users to cause a denial of service (panic) via unknown vectors related to self encapsulated IP packets.
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Analysis
by VulDB Data Team • 08/09/2019
The vulnerability identified as CVE-2008-1779 affects Sun Solaris operating systems versions 8, 9, and 10, representing a critical security flaw that enables remote privileged users to trigger system panics through self encapsulated IP packets. This issue falls under the category of denial of service vulnerabilities where the attacker can cause the system to crash or become unresponsive, effectively rendering the affected system unavailable to legitimate users. The vulnerability specifically relates to how the Solaris kernel processes certain network packets that contain self encapsulated IP structures, which are packets that contain other IP packets within their payload.
The technical nature of this vulnerability stems from improper handling of self encapsulated IP packets within the network stack implementation of Solaris. When the system receives such packets, the kernel fails to properly validate or process the packet structure, leading to a kernel panic condition that results in system crash. This type of vulnerability represents a classic case of insufficient input validation and improper error handling within kernel space code. The attack vector requires the attacker to be authenticated with privileged access, typically at the network level, though the exact privilege requirements may vary based on system configuration and network access controls. The vulnerability is particularly concerning because it can be exploited from remote locations, potentially allowing attackers to cause system-wide outages without requiring physical access or extensive local privileges.
The operational impact of this vulnerability extends beyond simple service disruption to potentially compromise system availability and integrity in enterprise environments. Organizations running Solaris 8, 9, or 10 systems are at risk of experiencing unexpected system crashes, which can lead to data loss, service interruptions, and potential business disruption. The self encapsulated IP packet mechanism allows for complex packet structures that can be crafted to exploit memory corruption issues within the kernel's packet processing routines. This vulnerability aligns with CWE-121, which addresses stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow conditions, though the specific implementation appears to involve kernel memory management issues rather than traditional buffer overflows. The attack scenario typically involves an authenticated attacker who can send specially crafted network packets to the target system, potentially exploiting network services or interfaces that process incoming IP traffic.
Mitigation strategies for CVE-2008-1779 should focus on immediate patch application from Sun Microsystems, which would include applying the relevant security updates and patches to address the kernel packet processing flaws. Organizations should also implement network segmentation and access controls to limit the attack surface, ensuring that only authorized and trusted sources can send network traffic to critical systems. Network monitoring solutions should be deployed to detect unusual packet patterns or potential exploitation attempts, particularly focusing on network traffic containing self encapsulated IP structures. The implementation of firewall rules and access control lists can help filter out suspicious packet types and reduce the risk of exploitation. System administrators should also consider implementing intrusion detection systems that can identify and alert on potential exploitation attempts targeting this specific vulnerability. From an ATT&CK framework perspective, this vulnerability maps to techniques involving privilege escalation and denial of service, specifically targeting the system's network stack and kernel memory management functions. Regular security assessments and vulnerability scanning should be conducted to identify systems running vulnerable Solaris versions and ensure proper patch management protocols are in place to prevent exploitation attempts.