// For flags

CVE-2008-0960

SNMPv3 - HMAC Validation error Remote Authentication Bypass

Severity Score

9.8
*CVSS v3

Exploit Likelihood

57%
*EPSS

Affected Versions

0
*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Una comprobación SNMPv3 HMAC en (1) Net-SNMP versión 5.2.x anterior a 5.2.4.1, versión 5.3.x anterior a 5.3.2.1 y versión 5.4.x anterior a 5.4.1.1; (2) UCD-SNMP; (3) eCos; (4) C-series versión 1.0.0 hasta 2.0.0 de Juniper Session and Resource Control (SRC); (5) Data de NetApp (también se conoce como Network Appliance) ONTAP versiones 7.3RC1 y 7.3RC2; (6) SNMP Research versión anterior a 16.2; (7) múltiples productos Cisco IOS, CatOS, ACE y Nexus; (8) Ingate Firewall versión 3.1.0 y posterior y SIParator versión 3.1.0 y posterior; (9) HP OpenView SNMP Emanate Master Agent versión 15.x; y posiblemente otros productos dependen del cliente para especificar la longitud del HMAC, lo que facilita que los atacantes remotos omitan la autenticación SNMP por medio de un valor de longitud de 1, que solo comprueba el primer byte.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2008-02-25 CVE Reserved
  • 2008-06-10 CVE Published
  • 2024-08-07 CVE Updated
  • 2024-08-07 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-287: Improper Authentication
CAPEC
References (65)
Affected Vendors, Products, and Versions (0)
Match found for: AND_3_NODES_OR__OS_HW_AP__VULN0_False_VULN1_False_VULN2_True
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status