SHELLCODE: x86 Intel Architecture Instruction Set NOOP Slide In HTTP Header
This signature detects attempts to exploit a known vulnerability against Web servers on Intel x86 platforms. Attackers can use the "No-Op Slide" attack to pad the stack with "No Operation" x86 CPU instructions and overwrite the return address.
Extended Description
Large amounts of values that represent No-Ops in a data stream may represent a buffer overflow attempt.
Short Name
SHELLCODE:X86:X90-NOOP-HTTP-HDR
Severity
Critical
Recommended
False
Recommended Action
Drop
Category
SHELLCODE
Keywords
Architecture HTTP Header In Instruction Intel NOOP Set Slide x86
Release Date
04/28/2004
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3375
False Positive
Unknown