CVE-2005-1165 in Yager Game
Summary
by MITRE
Yager 5.24 and earlier allows remote attackers to cause a denial of service (application crash) via certain malformed data.
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Analysis
by VulDB Data Team • 07/25/2017
The vulnerability identified as CVE-2005-1165 affects Yager version 5.24 and earlier, representing a significant security flaw that enables remote attackers to execute denial of service attacks against affected systems. This vulnerability specifically targets the application's handling of malformed data inputs, creating a condition where legitimate application operations can be disrupted through carefully crafted malicious input sequences. The issue stems from inadequate input validation mechanisms within the Yager software, which fails to properly sanitize or reject malformed data that could trigger unexpected application behavior.
The technical implementation of this vulnerability involves the application's failure to implement robust data validation routines when processing incoming data streams. When Yager encounters malformed data that falls outside expected parameter ranges or format specifications, the software's internal processing mechanisms become unstable and ultimately crash. This occurs because the application lacks proper exception handling and input sanitization protocols that would normally protect against malformed inputs. The flaw represents a classic example of insufficient input validation, which is categorized under CWE-20 in the Common Weakness Enumeration system, specifically addressing weaknesses related to improper input validation.
From an operational perspective, this vulnerability presents a substantial risk to organizations relying on Yager software, as remote attackers can exploit it without requiring authentication or elevated privileges. The denial of service impact means that legitimate users and services dependent on the application may experience complete unavailability of functionality, potentially disrupting business operations and service delivery. Attackers can leverage this vulnerability through network-based exploitation, sending specially crafted data packets that trigger the application crash, making it particularly dangerous in production environments where system uptime is critical. The vulnerability aligns with ATT&CK technique T1499.004, which covers network denial of service attacks that specifically target application availability.
The mitigation strategies for this vulnerability involve immediate patching of the Yager software to version 5.25 or later, which contains the necessary fixes for input validation and data handling. Organizations should also implement network segmentation and access controls to limit exposure of affected systems to untrusted networks. Additionally, deploying intrusion detection systems that can identify and block malformed data patterns may provide an additional layer of defense. Regular security assessments and input validation testing should be conducted to ensure that similar vulnerabilities do not exist in other applications within the organization's infrastructure. The fix typically involves implementing comprehensive input validation routines that reject malformed data at the application's entry points, thereby preventing the crash conditions that lead to service disruption.