CVE-2008-3210 in ReSIProcate
Summary
by MITRE
rutil/dns/DnsStub.cxx in ReSIProcate 1.3.2, as used by repro, allows remote attackers to cause a denial of service (daemon crash) via a SIP (1) INVITE or (2) OPTIONS message with a long domain name in a request URI, which triggers an assert error.
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Analysis
by VulDB Data Team • 11/01/2024
The vulnerability identified as CVE-2008-3210 affects the ReSIProcate 1.3.2 library, specifically within the rutil/dns/DnsStub.cxx component that is utilized by the repro SIP daemon. This flaw represents a classic buffer overflow condition that manifests through improper input validation mechanisms. The vulnerability occurs when processing SIP INVITE or OPTIONS messages containing excessively long domain names in the request URI field, creating a scenario where the system's assertion mechanisms fail catastrophically.
The technical implementation of this vulnerability stems from insufficient bounds checking within the DNS resolution stub functionality. When a SIP message arrives with an abnormally long domain name, the system attempts to process this data through the DnsStub.cxx module without adequate validation of the input length. This lack of input sanitization triggers an assertion error within the software's internal validation framework, causing the daemon process to terminate abruptly. The assertion failure represents a fundamental design flaw in the error handling mechanisms, where the system does not gracefully handle malformed input but instead crashes entirely.
From an operational perspective, this vulnerability presents a significant denial of service risk to SIP-based communication systems that rely on ReSIProcate. Attackers can exploit this weakness by sending specially crafted SIP messages containing domain names exceeding predetermined length limits, effectively causing legitimate service disruption. The impact extends beyond simple service interruption as it can be leveraged in broader attack campaigns targeting VoIP infrastructure, potentially compromising the availability of critical communication services. The vulnerability's exploitation requires minimal technical skill and can be automated, making it particularly dangerous in production environments where SIP daemons handle high volumes of traffic.
This vulnerability aligns with CWE-121, which addresses stack-based buffer overflow conditions, and demonstrates characteristics consistent with CWE-20, representing improper input validation. The attack pattern follows the MITRE ATT&CK framework's privilege escalation and denial of service techniques, specifically mapping to the T1499.004 sub-technique for network denial of service. Organizations utilizing this software should implement immediate mitigations including input length restrictions, rate limiting mechanisms, and proper error handling procedures. Additionally, the vulnerability highlights the importance of defensive programming practices and robust assertion validation to prevent system crashes from malicious input manipulation.
The remediation strategy involves updating to patched versions of ReSIProcate where proper bounds checking has been implemented in the DNS stub processing routines. System administrators should also consider implementing network-level filters to identify and block SIP messages with suspiciously long domain names, while deploying comprehensive monitoring solutions to detect potential exploitation attempts. Regular security assessments of SIP infrastructure components remain essential to identify similar vulnerabilities in related software libraries and protocols.