cbcvebase.
CVE-2007-2238
published 2009-04-16

CVE-2007-2238: Multiple stack-based buffer overflows in the Whale Client Components ActiveX control (WhlMgr.dll), as used in Microsoft Intelligent Application Gateway (IAG)…

PriorityP356critical9.3CVSS 2.0
AVNACMAuNCCICAC
EXPLOIT
EPSS
45.53%
98.6th percentile
Multiple stack-based buffer overflows in the Whale Client Components ActiveX control (WhlMgr.dll), as used in Microsoft Intelligent Application Gateway (IAG) before 3.7 SP2, allow remote attackers to execute arbitrary code via long arguments to the (1) CheckForUpdates or (2) UpdateComponents methods.

Affected

1 ranges
VendorProductVersion rangeFixed in
microsoftintelligent_application_gateway_2007<= 3.7

Detection & IOCsextracted from sources · hover to see the quote

filenameWhlMgr.dll
otherComponentManager.Installer.1
commandCheckForUpdates()
commandUpdateComponents()
versionWhlMgr.dll 3.1.502.64
  • Detect instantiation of the vulnerable ActiveX ProgID 'ComponentManager.Installer.1' in browser scripts, which is the attack vector for this exploit.
  • Monitor for heap spray targeting address 0x0a0a0a0a with a block size of 0x40000, a pattern characteristic of this exploit's JavaScript heap spray.
  • Alert on calls to CheckForUpdates() or UpdateComponents() methods of WhlMgr.dll (ComponentManager.Installer.1 ActiveX) with abnormally long string arguments, indicative of stack buffer overflow exploitation.
  • The exploit uses JavaScript obfuscation (ObfuscateJS) and unescape-encoded shellcode delivery; inspect browser traffic for unescape() patterns combined with ActiveXObject instantiation of ComponentManager.Installer.1.
  • ·The Metasploit module's Ret value for the sole target (Windows XP SP0-SP3 / Vista / IE 6-7) is empty in the source, meaning a reliable return address may need to be supplied or resolved dynamically; detections based on a fixed return address will not be reliable.
  • ·The JavaScript payload and variable names are obfuscated at runtime via ObfuscateJS, so static string-based signatures on variable names (e.g., 'evil_string', 'shellcode') will not match obfuscated delivery.
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