CVE-2013-1329 in Publisher 2003
Summary
by MITRE
Integer signedness error in Microsoft Publisher 2003 SP3 allows remote attackers to execute arbitrary code via a crafted Publisher file that triggers a buffer underflow, aka "Publisher Buffer Underflow Vulnerability."
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Analysis
by VulDB Data Team • 05/11/2021
The CVE-2013-1329 vulnerability represents a critical integer signedness error in Microsoft Publisher 2003 Service Pack 3 that creates a buffer underflow condition when processing malformed Publisher files. This vulnerability falls under the CWE-128 category of "Wrap or Overflow" and specifically manifests as a buffer underflow due to improper handling of signed integer values during memory allocation calculations. The flaw occurs when the application attempts to parse a crafted Publisher document that contains maliciously constructed data structures, leading to incorrect buffer size calculations that result in memory corruption.
The technical exploitation of this vulnerability relies on the attacker crafting a malicious Publisher file that triggers an integer underflow condition during buffer allocation. When the vulnerable application processes this crafted file, it performs arithmetic operations on signed integers that, under certain conditions, produce negative values that are then used as buffer sizes. This negative buffer size calculation results in a buffer underflow where the application attempts to write data beyond the allocated buffer boundaries, potentially overwriting adjacent memory regions. The vulnerability is classified as a remote code execution flaw because an attacker can deliver the malicious file via email attachments, web downloads, or other remote delivery mechanisms without requiring local system access.
The operational impact of this vulnerability is severe as it provides remote attackers with the ability to execute arbitrary code on affected systems with the privileges of the user running Publisher. This represents a significant escalation from a standard buffer overflow to a full remote code execution scenario, allowing attackers to establish persistent access, escalate privileges, or deploy additional malware. The vulnerability affects Microsoft Publisher 2003 SP3 and potentially other versions of the software, making it a widespread concern for organizations that have not upgraded to patched versions. The attack vector is particularly dangerous because it can be delivered through social engineering tactics such as phishing emails containing malicious Publisher attachments, making it difficult to defend against through traditional network security measures alone.
Mitigation strategies for CVE-2013-1329 should include immediate deployment of Microsoft security patches and updates, as well as implementing network-based protections such as email filtering and web content filtering to prevent delivery of malicious Publisher files. Organizations should also consider implementing application whitelisting policies that restrict execution of Publisher applications in untrusted environments, and establish monitoring procedures to detect unusual memory access patterns that might indicate exploitation attempts. The vulnerability demonstrates the importance of proper input validation and integer handling in software development, aligning with ATT&CK technique T1059.007 for command and script interpreter usage, where attackers might leverage the remote code execution capability to establish persistence. Additionally, the vulnerability highlights the need for regular security updates and patch management programs to address known vulnerabilities before they can be exploited in the wild.