Cisco Email Security Appliance TLS resource consumption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.3 | $0-$5k | 0.00 |
Summary
A vulnerability labeled as problematic has been found in Cisco Email Security Appliance. The impacted element is an unknown function of the component TLS Handler. Executing a manipulation can lead to resource consumption. The identification of this vulnerability is CVE-2022-20960. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.
Details
A vulnerability classified as critical was found in Cisco Email Security Appliance (Anti-Malware Software) (the affected version unknown). This vulnerability affects an unknown part of the component TLS Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability.
The weakness was shared 11/02/2022 as cisco-sa-esa-dos-gdghHmbV. The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2022-20960 since 11/02/2021. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.
Upgrading eliminates this vulnerability.
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Product
Type
Vendor
Name
License
Website
- Vendor: https://www.cisco.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 7.5
CNA Vector (Cisco Systems, Inc.): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Resource consumptionCWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
11/02/2021 🔍11/02/2022 🔍
11/02/2022 🔍
12/04/2022 🔍
Sources
Vendor: cisco.comAdvisory: cisco-sa-esa-dos-gdghHmbV
Status: Confirmed
CVE: CVE-2022-20960 (🔍)
GCVE (CVE): GCVE-0-2022-20960
GCVE (VulDB): GCVE-100-212824
Entry
Created: 11/02/2022 20:24Updated: 12/04/2022 07:09
Changes: 11/02/2022 20:24 (39), 12/04/2022 06:56 (2), 12/04/2022 07:09 (11)
Complete: 🔍
Cache ID: 216::103
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