SNMP GETBULK Large max-repetitions Remote DoS

high Nessus Plugin ID 27841

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Synopsis

The remote SNMP daemon is susceptible to a denial of service attack.

Description

It is possible to disable the remote SNMP daemon by sending a GETBULK request with a large value for 'max-repetitions'. A remote attacker may be able to leverage this issue to cause the daemon to consume excessive memory and CPU on the affected system while it tries unsuccessfully to process the request, thereby denying service to legitimate users.

Solution

Disable the SNMP service on the remote host if you do not use it. Otherwise, upgrade to version 5.4.1 or later if using Net-SNMP.

See Also

http://www.nessus.org/u?5aef7a73

http://www.nessus.org/u?355da3c5

Plugin Details

Severity: High

ID: 27841

File Name: snmp_getbulk_max_repetitions_dos.nasl

Version: 1.18

Type: remote

Family: SNMP

Published: 11/9/2007

Updated: 7/30/2018

Dependencies: find_service2.nasl, snmp_settings.nasl

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

Required KB Items: SNMP/community

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 5/4/2007

Reference Information

CVE: CVE-2007-5846

BID: 26378

CWE: 399