CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
96.3%
The Cisco ASA and PIX firewalls contain an authentication bypass vulnerability. This vulnerability may allow a remote attacker to gain unauthorized access to the internal network or firewall.
The Cisco Adaptive Security Appliance (ASA) is firewall that includes routing and intrusion prevention system (IPS) features. The Cisco PIX is a stateful firewall. The Cisco ASA and PIX firewalls include the ability to use LDAP and AAA servers to authenticate remote users or terminate VPN connections.
Per Cisco Security Advisory cisco-sa-20070502-asa:
Cisco ASA and PIX devices leveraging LDAP AAA servers for authentication of terminating L2TP IPSec tunnels or remote management sessions may be vulnerable to an authentication bypass attack. See the following bullets for more details:
* _Layer 2 Tunneling Protocol (L2TP)
A remote, unauthenticated attacker may be able to gain access to internal resources, or gain direct access to the firewall.
UpgradeCisco has released an update to address this vulnerability. See the Software Versions and Fixes section of Cisco Security Advisory cisco-sa-20070502-asa for more details.
Restrict access
Restricting access to the firewall’s telnet, SSH and HTTP interfaces to trusted hosts by using IP access control lists may mitigate this vulnerability.
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Updated: May 02, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
See <http://www.cisco.com/en/US/products/products_security_advisory09186a0080833166.shtml#fixes> for more details.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23210876 Feedback>).
Group | Score | Vector |
---|---|---|
Base | ||
Temporal | ||
Environmental |
Thanks to Cisco for information that used in this report.
This document was written by Ryan Giobbi.
CVE IDs: | CVE-2007-2462 |
---|---|
Severity Metric: | 2.43 Date Public: |