cbcvebase.
CVE-2011-0266
published 2011-01-13

CVE-2011-0266: Buffer overflow in nnmRptConfig.exe in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows remote attackers to execute arbitrary code via a long…

PriorityP273critical10CVSS 2.0
AVNACLAuNCCICAC
EXPLOIT
EPSS
70.11%
99.3th percentile
Buffer overflow in nnmRptConfig.exe in HP OpenView Network Node Manager (OV NNM) 7.51 and 7.53 allows remote attackers to execute arbitrary code via a long nameParams parameter, a different vulnerability than CVE-2011-0267.2.

Affected

2 ranges
VendorProductVersion rangeFixed in
hpopenview_network_node_manager
hpopenview_network_node_manager

Detection & IOCsextracted from sources · hover to see the quote

path/OvCgi/nnmRptConfig.exe
registry0x5A30532D
commandnameParams=<long string overflow payload> via POST to /OvCgi/nnmRptConfig.exe
  • Monitor for HTTP POST requests targeting /OvCgi/nnmRptConfig.exe with an abnormally large nameParams parameter value (offset threshold: 46913 bytes).
  • Alert on POST requests to /OvCgi/nnmRptConfig.exe containing the nameParams or schdParams parameters with payloads exceeding normal length bounds.
  • Detect exploit payload bad characters pattern: null byte, ampersand, and plus sign are avoided (\x00\x26\x2b), so their absence in an otherwise large POST body to nnmRptConfig.exe is suspicious.
  • Look for SEH-based exploitation patterns (ExitFunction=seh) combined with post-exploitation process migration activity on HP NNM hosts.
  • ·The exploit target is specifically Windows Server 2003 Enterprise; the hardcoded return address (0x5A30532D) and offset (46913) are version-specific and will not work against other OS versions without modification.
  • ·Affected versions are HP OV NNM 7.51 and 7.53 only; other versions are not confirmed vulnerable by the available sources.
  • ·The default exploit listener port is 80; deployments of HP NNM on non-standard ports would require adjustment of detection rules.
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