SNMP: Invalid Message Format
This protocol anomaly triggers when it detects a malformed SNMP message that does not have the proper ASN encoding.
Extended Description
If an SNMP datagram is detected in which any field is not correctly BER-encoded, this constitutes a protocol anomaly, and could indicate a network configuration error. It could also indicate that malicious activity, involving the intentional injection of malformed SNMP packets into a network, is underway.
References
URL: http://www.giac.org/practical/GSEC/Edmund_Whelan_GSEC.pdf
Short Name
SNMP:ERROR:INVALID-MSG-FORMAT
Severity
Minor
Recommended
False
Recommended Action
None
Category
SNMP
Release Date
04/22/2003
Supported Platforms
mx-19.3
vmx-19.3
vsrx-19.2
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-19.4
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
vmx-19.4
mx-19.4
srxevo-25.4
vsrx-26.2
srx-26.2
srx-branch-26.2
vsrx3bsd-26.2
mx-12.3
srx-12.3
srx-branch-12.3
vsrx-12.3
Sigpack Version
3324
False Positive
Unknown