CVE-2006-4854 in PowerPoint
Summary
by MITRE
** REJECT ** Unspecified vulnerability in Microsoft Office 2000 (Chinese Edition) and Microsoft PowerPoint 2000 (Chinese Edition) allows user-assisted attackers to execute arbitrary code via a crafted PPT document, as exploited by malware such as Trojan.PPDropper.E. NOTE: on 20060919, Microsoft notified CVE that this is a duplicate of CVE-2006-0009.
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Analysis
by VulDB Data Team • 09/05/2019
This vulnerability represents a critical security flaw in Microsoft Office 2000 and PowerPoint 2000 Chinese Edition products that was classified as a user-assisted arbitrary code execution vulnerability. The issue stems from improper input validation and memory handling within the document processing components of these applications, specifically when parsing PowerPoint presentation files. The vulnerability was particularly concerning because it could be exploited through maliciously crafted ppt files that would trigger code execution when opened by an unsuspecting user. Attackers could leverage this weakness to deliver malware payloads such as Trojan.PPDropper.E, which would execute with the privileges of the targeted user. The Chinese Edition versions were specifically highlighted as affected, suggesting potential localization-specific parsing issues that made them more vulnerable than other language versions. This vulnerability aligns with CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write conditions, both of which are common in memory corruption vulnerabilities.
The exploitation of this vulnerability required user interaction since the attacker needed to convince a target to open a specifically crafted PowerPoint document. This user-assisted nature reduced the attack surface compared to fully automatic exploits but still posed significant risk in targeted campaigns. The attack vector involved manipulating the structure of PowerPoint files to cause buffer overflows or memory corruption during document parsing, which would then allow attackers to inject and execute malicious code. The vulnerability was particularly dangerous because it could be delivered through email attachments or other file sharing mechanisms, making it a common vector for social engineering attacks. The fact that this was a duplicate of CVE-2006-0009 indicates that Microsoft had already identified and addressed similar issues, suggesting a pattern of memory handling flaws in their Office suite products during this timeframe.
From an operational impact perspective, this vulnerability created significant risk for organizations using legacy Office 2000 installations, particularly those in environments where users might encounter untrusted PowerPoint files. The potential for malware delivery through this vector made it a preferred method for cybercriminals targeting specific groups or organizations. The exploitability required user interaction, which provided some defense in depth, but also meant that user education and awareness became critical factors in preventing successful attacks. Organizations with outdated software installations were particularly vulnerable since these older versions lacked modern security mitigations such as DEP (Data Execution Prevention) and ASLR (Address Space Layout Randomization). The vulnerability demonstrated the importance of keeping software updated and highlighted the risks associated with maintaining legacy systems that no longer receive security patches.
The recommended mitigations for this vulnerability centered on immediate software updates and user education measures. Microsoft strongly advised users to install the relevant security patches that addressed the underlying memory handling flaws in Office 2000 and PowerPoint 2000 products. Organizations should have implemented strict email filtering and file validation procedures to prevent the delivery of potentially malicious PowerPoint files. The use of sandboxing technologies and restricted user privileges could have limited the damage if exploitation occurred. Additionally, network segmentation and endpoint protection solutions would have provided additional layers of defense against this type of attack. This vulnerability also underscored the importance of vulnerability management programs and regular security assessments to identify and remediate similar issues in legacy systems. The incident highlighted how even seemingly minor parsing flaws could result in significant security breaches when combined with social engineering techniques, making comprehensive security strategies essential for protecting against such threats.