Talos Rules 2020-07-23
This release adds and modifies rules in several categories.

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct directory traversal attacks and read sensitive files on a targeted system. Rules to detect attacks targeting this vulnerability are included in this release and are identified with GID 3, SIDs 54598 through 54601.

Talos has added and modified multiple rules in the server-webapp rule sets to provide coverage for emerging threats from these technologies.

Change logs

2020-07-23 20:20:06 UTC

Snort Subscriber Rules Update

Date: 2020-07-23

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091600.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


Modified Rules:


 * 3:54601 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54600 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54599 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54598 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)

2020-07-23 20:20:06 UTC

Snort Subscriber Rules Update

Date: 2020-07-23

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091501.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


Modified Rules:


 * 3:54601 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54598 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54599 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54600 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)

2020-07-23 20:20:06 UTC

Snort Subscriber Rules Update

Date: 2020-07-23

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091500.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


Modified Rules:


 * 3:54598 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54601 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54599 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54600 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)

2020-07-23 20:20:06 UTC

Snort Subscriber Rules Update

Date: 2020-07-23

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091401.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


Modified Rules:


 * 3:54598 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54599 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54601 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54600 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)

2020-07-23 20:20:06 UTC

Snort Subscriber Rules Update

Date: 2020-07-23

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091300.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


Modified Rules:


 * 3:54598 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54599 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54600 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54601 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)

2020-07-23 20:20:06 UTC

Snort Subscriber Rules Update

Date: 2020-07-23

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091101.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


Modified Rules:


 * 3:54598 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54599 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54601 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54600 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)

2020-07-23 20:20:06 UTC

Snort Subscriber Rules Update

Date: 2020-07-23

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3000.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


Modified Rules:



2020-07-23 20:20:06 UTC

Snort Subscriber Rules Update

Date: 2020-07-23

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2983.

The format of the file is:

gid:sid <-> Default rule state <-> Message (rule group)

New Rules:


Modified Rules:


 * 3:54600 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54598 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54599 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)
 * 3:54601 <-> ENABLED <-> SERVER-WEBAPP Cisco ASA directory traversal attempt (server-webapp.rules)