cbcvebase.
CVE-2011-3167
published 2011-11-02

CVE-2011-3167: Unspecified vulnerability in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows remote attackers to execute arbitrary code via unknown vectors, aka…

PriorityP276critical10CVSS 2.0
AVNACLAuNCCICAC
EXPLOIT
EPSS
66.40%
99.2th percentile
Unspecified vulnerability in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows remote attackers to execute arbitrary code via unknown vectors, aka ZDI-CAN-1210.

Affected

2 ranges
VendorProductVersion rangeFixed in
hpopenview_network_node_manager
hpopenview_network_node_manager

Detection & IOCsextracted from sources · hover to see the quote

url/OvCgi/webappmon.exe
url/OvCgi/OpenView5.exe?Context=Snmp&Action=../../../log/setup.log
path/OvCgi/webappmon.exe
path/OvCgi/OpenView5.exe
registry0x5a41656a
registry0x5a4251c5
processwebappmon.exe
  • Detect HTTP POST requests to /OvCgi/webappmon.exe with an oversized 'textFile' parameter (offset 1067 bytes minus install path length) indicating a buffer overflow attempt.
  • Detect directory traversal attempts against /OvCgi/OpenView5.exe with Action parameter containing '../../../log/setup.log' — used by the exploit to leak the installation path prior to the overflow.
  • Look for HTTP requests to /OvCgi/OpenView5.exe with query parameters 'Context=Snmp' and 'Action' containing path traversal sequences as a precursor reconnaissance step.
  • The exploit uses an egghunter shellcode encoded with x86/alpha_mixed with BufferRegister=ESP; detect alpha-numeric shellcode patterns in POST body to webappmon.exe.
  • The exploit targets ov.dll version 1.30.5.8002; presence of this DLL version on a system without patch NNM_01213 or hotfix SSRT100649 indicates a vulnerable host.
  • Monitor for webappmon.exe spawning unexpected child processes (e.g., notepad.exe, wordpad.exe) as a post-exploitation migration indicator.
  • ·The exploit only targets HP OV NNM 7.53 with specific patches (ECS_00048, NNM_01128, NNM_01172, NNM_01187) installed but WITHOUT patch NNM_01213 or hotfix SSRT100649; different patch levels will have different offsets and ROP gadget addresses.
  • ·The hardcoded ROP gadgets (Ret=0x5a41656a, JmpESP=0x5a4251c5) are specific to ov.dll v1.30.5.8002; these addresses will differ on other DLL versions.
  • ·If the directory traversal via OpenView5.exe (OSVDB 44359) fails to retrieve the installation path, the exploit falls back to the default path 'C:\Program Files\HP OpenView\', which may cause exploitation failure on non-default installs.
  • ·Post-exploitation migration to %windir%\system32\notepad.exe fails on Windows XP SP3 due to access denied; the module handles this by migrating to %ProgramFiles%\Windows NT\Accessories\wordpad.exe on XP instead.
  • ·Bad characters for the payload exclude bytes 0x00–0x09, 0x0b–0x23, and specific characters (0x26, 0x2b, 0x3c, 0x3e, 0x5b, 0x5d, 0x5e, 0x60, 0x7e, 0x7f), constraining usable shellcode.
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