Talos Rules 2021-06-04
This release adds and modifies rules in several categories.

This release provides coverage via SID 57720 for CVE-2021-21985, a remote code execution vulnerability in the vSphere Client’s Virtual SAN Health Check plug-in, which is enabled by default in vCenter Server. An attacker with network access to this service can exploit this vulnerability to gain remote code execution on the affected vCenter Server.

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

Change logs

2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091701.

The format of the file is:

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

New Rules:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091700.

The format of the file is:

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

New Rules:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 2091601.

The format of the file is:

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

New Rules:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

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:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

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:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

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:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

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:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

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:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

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:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

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:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (snort3-server-webapp.rules)

Modified Rules:



2021-06-05 03:13:31 UTC

Snort Subscriber Rules Update

Date: 2021-06-04

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:


 * 1:57720 <-> ENABLED <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt (server-webapp.rules)

Modified Rules:



2021-06-05 03:16:29 UTC

Snort Subscriber Rules Update

Date: 2021-06-05-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.0.3.1.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:57720 <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt

Modified Rules:



2021-06-05 03:16:29 UTC

Snort Subscriber Rules Update

Date: 2021-06-05-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.0.3.4.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:57720 <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt

Modified Rules:



2021-06-05 03:16:29 UTC

Snort Subscriber Rules Update

Date: 2021-06-05-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.0.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:57720 <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt

Modified Rules:



2021-06-05 03:16:30 UTC

Snort Subscriber Rules Update

Date: 2021-06-05-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.0.1.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:57720 <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt

Modified Rules:



2021-06-05 03:16:30 UTC

Snort Subscriber Rules Update

Date: 2021-06-05-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.1.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:57720 <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt

Modified Rules:



2021-06-05 03:16:30 UTC

Snort Subscriber Rules Update

Date: 2021-06-05-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.3.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:57720 <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt

Modified Rules:



2021-06-05 03:16:30 UTC

Snort Subscriber Rules Update

Date: 2021-06-05-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.4.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:57720 <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt

Modified Rules:



2021-06-05 03:16:30 UTC

Snort Subscriber Rules Update

Date: 2021-06-05-001

This is the complete list of rules modified and added in the Sourcefire VRT Certified rule pack for Snort version 3.1.5.0.

The format of the file is:

gid:sid <-> Message

New Rules:

* 1:57720 <-> SERVER-WEBAPP VMWare vSphere Client remote code execution attempt

Modified Rules: