CVE-2021-40118
7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD
Description
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 trigger a denial of service (DoS) condition. This vulnerability is due to improper input validation when parsing HTTPS requests. An attacker could exploit this vulnerability by sending a malicious HTTPS request to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Affected (49)
Configuration A
| Vulnerable Software | Affected Versions |
|---|---|
| version < 9.8.4.40 | |
| 9.13.0 ≤ version < 9.14.3.9 | |
| version < 6.4.0.13 |
Configuration B
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.012(004.024) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5512 X | All versions |
Configuration C
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.012(004.024) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5505 | All versions |
Configuration D
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.012(004.024) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5515 X | All versions |
Configuration E
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.012(004.024) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5525 X | All versions |
Configuration F
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.012(004.024) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5545 X | All versions |
Configuration G
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.012(004.024) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5555 X | All versions |
Configuration H
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.012(004.024) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5580 | All versions |
Configuration I
| Vulnerable Software | Affected Versions |
|---|---|
| Version 009.012(004.024) |
| Running on/with | Platform Versions |
|---|---|
Cisco Asa 5585 X | All versions |
Related CWEs
CWE-121
Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CWE-787
Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
References (2)
Source: psirt@cisco.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Timeline
No history available yet.