Microsoft Agent ActiveX control buffer overflow

ms-agent-url-code-execution (35752) The risk level is classified as HighHigh Risk

Description:

The Microsoft Agent ActiveX control (agentdpv.dll) is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the Agent.Control function. By persuading a victim to visit a specially-crafted Web page, a remote attacker could overflow a buffer and execute arbitrary code on the system with the victim's privileges.

*CVSS:

Base Score: 9.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Complete
  Integrity Impact: Complete
  Availability Impact: Complete
 
Temporal Score: 6.9
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS07-051. See References.

For Hewlett-Packard:
Refer to HPSBST02260 SSRT071471 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

  • Full-Disclosure Mailing List, Tue Sep 11 2007 - 12:41:54 CDT: Assurent VR - Microsoft Agent Crafted URL Stack Buffer Overflow.
  • HPSBST02260 SSRT071471 : Storage Management Appliance (SMA), Microsoft Patch Applicability MS07-051 to MS07-054.
  • iDefense PUBLIC ADVISORY: 09.11.07: Microsoft Windows 2000 Agent URL Canonicalizing Stack Based Buffer Overflow Vulnerability.
  • Microsoft Security Bulletin MS07-051: Vulnerability in Agent Could Allow Remote Code Execution (938827).
  • ASA-2007-378: MS07-051 Vulnerability in Microsoft Agent Could Allow Remote Code Execution (938827)
  • BID-25566: Microsoft Agent agentdpv.dll ActiveX Control Malformed URL Stack Buffer Overflow Vulnerability
  • CVE-2007-3040: Stack-based buffer overflow in agentdpv.dll 2.0.0.3425 in Microsoft Agent on Windows 2000 SP4 allows remote attackers to execute arbitrary code via a crafted URL to the Agent (Agent.Control) ActiveX control, which triggers an overflow within the Agent Service (agentsrv.exe) process, a different issue than CVE-2007-1205.
  • OSVDB ID: 36934: Microsoft Agent URL Handling Remote Code Execution
  • SA26753: Microsoft Agent ActiveX Control URL Handling Buffer Overflow Vulnerability
  • SECTRACK ID: 1018677: Microsoft Agent ActiveX Control Memory Corruption Error Lets Remote Users Execute Arbitrary Code
  • US-CERT VU#716872: Microsoft Agent fails to properly handle specially crafted URLs
  • VUPEN/ADV-2007-3113: Microsoft Windows Agent Remote Command Execution Vulnerability (MS07-051)

Platforms Affected:

  • HP Storage Management Appliance 2.1
  • Microsoft Windows 2000 SP4

Reported:

Sep 11, 2007

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