Rule Category

PROTOCOL-RPC -- Snort has detected traffic that may indicate the presence of the rpc protocol or vulnerabilities in the rpc protocol on the network.

Alert Message

PROTOCOL-RPC IBM AIX and Oracle Solaris nfsd v4 nfs_portmon security bypass attempt

Rule Explanation

This rule looks for NFSv4 traffic which attempts to exploit CVE-2009-3517.

What To Look For

The NFSv4 server kernel module in Sun Solaris 10, and OpenSolaris before snv_119, does not properly implement the nfs_portmon setting, which allows remote attackers to access shares, and read, create, and modify arbitrary files, via unspecified vectors.

Known Usage

No public information

False Positives

No known false positives


Cisco Talos Intelligence Group

Rule Groups

MITRE::ATT&CK Framework::Enterprise::Initial Access::Exploit Public-Facing Application


Rule Vulnerability

Memory Corruption

Memory Corruption is any vulnerability that allows the modification of the content of memory locations in a way not intended by the developer. Memory corruption results are inconsistent; they could lead to fatal errors and system crashes or data leakage; some have no effect at all.

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
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