Cisco Firepower Threat Defense SNMP resource consumption

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.7 | $0-$5k | 0.00 |
Summary
A vulnerability classified as very critical has been found in Cisco Firepower Threat Defense. Affected by this vulnerability is an unknown functionality of the component SNMP Handler. Performing a manipulation results in resource consumption. This vulnerability is cataloged as CVE-2020-3533. It is possible to initiate the attack remotely. There is no exploit available.
Details
A vulnerability classified as very critical has been found in Cisco Firepower Threat Defense (Firewall Software) (version now known). This affects some unknown processing of the component SNMP Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.
The weakness was shared 10/23/2020. The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2020-3533. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/26/2020). MITRE ATT&CK project uses the attack technique T1499 for this issue.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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: 8.1VulDB Meta Temp Score: 7.9
VulDB Base Score: 8.6
VulDB Temp Score: 8.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
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: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
12/12/2019 🔍10/23/2020 🔍
10/23/2020 🔍
11/26/2020 🔍
Sources
Vendor: cisco.comAdvisory: tools.cisco.com
Status: Confirmed
CVE: CVE-2020-3533 (🔍)
GCVE (CVE): GCVE-0-2020-3533
GCVE (VulDB): GCVE-100-163449
Entry
Created: 10/23/2020 11:21Updated: 11/26/2020 07:08
Changes: 10/23/2020 11:21 (35), 11/26/2020 07:04 (2), 11/26/2020 07:08 (19)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
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