CVE-2008-0960 Auth bypass in n/a

Critical 10.0 Published 10 Jun 2008 Updated 7 Aug 2024

Remote attackers can bypass SNMPv3 authentication by specifying a short HMAC length, allowing unauthorized access to network devices and servers.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2008-0960?

CVE-2008-0960 is a critical authentication bypass vulnerability in n/a, published on 10 Jun 2008. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

SNMPv3 HMAC verification in (1) Net-SNMP 5.2.x before 5.2.4.1, 5.3.x before 5.3.2.1, and 5.4.x before 5.4.1.1; (2) UCD-SNMP; (3) eCos; (4) Juniper Session and Resource Control (SRC) C-series 1.0.0 through 2.0.0; (5) NetApp (aka Network Appliance) Data ONTAP 7.3RC1 and 7.3RC2; (6) SNMP Research before 16.2; (7) multiple Cisco IOS, CatOS, ACE, and Nexus products; (8) Ingate Firewall 3.1.0 and later and SIParator 3.1.0 and later; (9) HP OpenView SNMP Emanate Master Agent 15.x; and possibly other products relies on the client to specify the HMAC length, which makes it easier for remote attackers to bypass SNMP authentication via a length value of 1, which only checks the first byte.

Weakness: CWE-287

Which versions are affected by CVE-2008-0960?

It affects 2 products.

Linux distribution packages (12)

`ucd-snmp` Red Hat:enterprise_linux:2.1::as	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp-devel` Red Hat:enterprise_linux:2.1::as	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp-utils` Red Hat:enterprise_linux:2.1::as	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp` Red Hat:enterprise_linux:2.1::aw	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp-devel` Red Hat:enterprise_linux:2.1::aw	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp-utils` Red Hat:enterprise_linux:2.1::aw	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp` Red Hat:enterprise_linux:2.1::es	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp-devel` Red Hat:enterprise_linux:2.1::es	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp-utils` Red Hat:enterprise_linux:2.1::es	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp` Red Hat:enterprise_linux:2.1::ws	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp-devel` Red Hat:enterprise_linux:2.1::ws	All versions	`0:4.2.5-8.AS21.7`
`ucd-snmp-utils` Red Hat:enterprise_linux:2.1::ws	All versions	`0:4.2.5-8.AS21.7`

Products include Juniper Session and Resource Control, Juniper Src Pe.

How do I fix CVE-2008-0960?

Upgrade to a fixed version.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2008-0960 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2008-0960 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as DEBIAN-CVE-2008-0960, DTSA-137-1, GHSA-xmp9-m365-hwwg, RHSA-2008:0528.