Executive Summary

Summary
Title Cisco Adaptive Security Appliance Software Direct Authentication Denial of Service Vulnerability
Informations
Name cisco-sa-20171004-asa First vendor Publication 2017-10-04
Vendor Cisco Last vendor Modification 2017-10-04
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A vulnerability in the implementation of the direct authentication feature in Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause an affected device to unexpectedly reload, resulting in a denial of service (DoS) condition.

The vulnerability is due to incomplete input validation of the HTTP header. An attacker could exploit this vulnerability by sending a crafted HTTP request to the local IP address of an affected device. A successful exploit could allow the attacker to cause the affected device to reload.

Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems that have the direct authentication feature enabled. This vulnerability can be triggered by IPv4 or IPv6 traffic.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-asa ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-asa"]

BEGIN PGP SIGNATURE

iQKBBAEBAgBrBQJZ1QWDZBxDaXNjbyBTeXN0ZW1zIFByb2R1Y3QgU2VjdXJpdHkg SW5jaWRlbnQgUmVzcG9uc2UgVGVhbSAoQ2lzY28gUFNJUlQga2V5IDIwMTYtMjAx NykgPHBzaXJ0QGNpc2NvLmNvbT4ACgkQrz2APcQAkHnwAxAAmgTPdTrXLXNVVTHS 5Zau0CdJVoO3NKz3En+HB0d7CiD01E3BDZqgkzYBsrQd0ZrEciXj0Sg0IyFy/rlN 7EKvEey1K0JFqS0wxU+9HmEN3nq6JnBkVLDfs578oTcj922A0dGTxA9rHMStFnCO HMv7N9Uc6An7GvHAl0wtcaUZf6xlty6p6k9lN0Vxx3zSwr6SngVPAz4/KPFXsoKm XAPcYBOU/8heKrAwVJ7RZpWRCMXr8BX0mrwJSwZGtrf2Bxf+OgWKVUTRA9NVlcD5 93RfgZyg/bYU26uWtA+UfrrVLKSNwn12/wmaACCJRpaU8WOt2Wn5Xl8YD5XuEKpW CrmW3now8iKPTQk12C0eNgg7wrUnNf7Z8mqdsDtcSMGqUGNAMrd2ub6I56cXNVcQ PQ8TS17TmEBZ4kNiRIJaLzyWTsxt2MP75XH09Q2tNdVX72AB9KnPaq1CjGVD8Wm +9aDiNVlPjK6t+Ss+ntpKus0srzB4yVQTQFCPaTKI4HbHS/2+WCFil4d4d3uFOdmN n1xo8dSr4IuGy/NB0eexng0CNnn3gqtZw/Ogx0jRFOu/fegr6LKmBECPNzLT4kaN 39IXR+Z+3LKAT1o8DOirRlMBwiDmbe5mwT0XqCe9zRvRAbN0ceOgIdbTjlD8bGsX ZFl+hRHUxzmUDEeUnIilpnFG6mo= =M5Ed END PGP SIGNATURE

_______________________________________________ cust-security-announce mailing list cust-security-announce@cisco.com To unsubscribe, send the command "unsubscribe" in the subject of your message to cust-security-announce-leave@cisco.com

Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 3

Snort® IPS/IDS

Date Description
2017-10-05 Cisco Adaptive Security Appliance direct authentication denial of service att...
RuleID : 44503 - Revision : 1 - Type : SERVER-WEBAPP

Nessus® Vulnerability Scanner

Date Description
2017-10-12 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20171004-asa-adaptive_security_appliance.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
0
1
2
3
Date Informations
2017-11-01 17:22:39
  • Multiple Updates
2017-10-13 13:25:48
  • Multiple Updates
2017-10-05 13:26:50
  • Multiple Updates
2017-10-04 21:22:27
  • First insertion