CVE-2021-1236
Published: 13 January 2021
Multiple Cisco products are affected by a vulnerability in the Snort application detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. The vulnerability is due to a flaw in the detection algorithm. An attacker could exploit this vulnerability by sending crafted packets that would flow through an affected system. A successful exploit could allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network.
Notes
Author | Note |
---|---|
yomonokio |
There is no access to the actual fix for this CVE nor workarounds that address this vulnerability |
Priority
Status
Package | Release | Status |
---|---|---|
snort
Launchpad, Ubuntu, Debian |
bionic |
Needed
|
focal |
Needed
|
|
impish |
Not vulnerable
(2.9.15.1-5)
|
|
jammy |
Not vulnerable
(2.9.15.1-5)
|
|
kinetic |
Not vulnerable
(2.9.15.1-5)
|
|
lunar |
Not vulnerable
(2.9.15.1-5)
|
|
mantic |
Not vulnerable
(2.9.15.1-5)
|
|
noble |
Not vulnerable
(2.9.15.1-5)
|
|
trusty |
Needed
|
|
upstream |
Released
(2.9.15.1-1)
|
|
xenial |
Needed
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |