cbcvebase.
CVE-2010-1555
published 2010-05-13

CVE-2010-1555: Stack-based buffer overflow in getnnmdata.exe in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7.53 allows remote attackers to execute arbitrary…

PriorityP275critical10CVSS 2.0
AVNACLAuNCCICAC
EXPLOIT
EPSS
64.45%
99.1th percentile
Stack-based buffer overflow in getnnmdata.exe in HP OpenView Network Node Manager (OV NNM) 7.01, 7.51, and 7.53 allows remote attackers to execute arbitrary code via an invalid Hostname parameter.

Affected

3 ranges
VendorProductVersion rangeFixed in
hpopenview_network_node_manager
hpopenview_network_node_manager
hpopenview_network_node_manager

Detection & IOCsextracted from sources · hover to see the quote

path/OvCgi/getnnmdata.exe
path/OvCgi/getnnmdata.exe
filenamegetnnmdata.exe
uaT00WT00W
other0x5a01f277
other0x5a666d69
other0x5A667A77
commandPOST /OvCgi/getnnmdata.exe with Hostname parameter padded to 2038+ bytes
bytes
\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff
bytes
\x66\x81\xca\xff\x0f\x42\x52\x6a\x02\x58\xcd\x2e\x3c\x05\x5a\x74
  • Detect HTTP POST requests to /OvCgi/getnnmdata.exe with an abnormally large Hostname parameter (>2038 bytes) indicative of buffer overflow exploitation.
  • Alert on HTTP POST requests to /OvCgi/getnnmdata.exe where the User-Agent string contains 'T00WT00W' or embedded shellcode bytes.
  • Detect SEH-based exploit pattern: look for the egg-hunter stub bytes \x66\x81\xca\xff\x0f\x42\x52\x6a\x02\x58\xcd\x2e\x3c\x05\x5a\x74 in HTTP POST body to getnnmdata.exe.
  • The exploit uses AlphanumUpper encoded payload with ECX as BufferRegister; look for large all-uppercase alphanumeric payloads in the Hostname POST parameter.
  • Known exploit return addresses for pop-pop-ret gadgets: 0x5a01f277 (NNM 7.50), 0x5a666d69 (NNM 7.53), 0x5A667A77 (NNM 7.53 alternate); presence in network traffic to port 80 targeting getnnmdata.exe is highly suspicious.
  • ·The exploit targets HP OV NNM versions 7.50 and 7.53 specifically; the CVE also covers 7.01 and 7.51 but no public exploit offsets/return addresses are provided for those versions.
  • ·The standalone Python PoC embeds shellcode (calc.exe launcher) directly in the User-Agent header, an unusual delivery vector that may bypass body-only inspection rules.
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