Cisco Integrated Services Router TCP Fast Open protection mechanism

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco Integrated Services Router, Industrial Security Appliance, Services Router 1000V, Firepower Threat Defense, Integrated Services Virtual Router and Meraki MX Security Appliance. Impacted is an unknown function of the component TCP Fast Open. Performing a manipulation results in protection mechanism. This vulnerability is identified as CVE-2021-1224. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Cisco Integrated Services Router, Industrial Security Appliance, Services Router 1000V, Firepower Threat Defense, Integrated Services Virtual Router and Meraki MX Security Appliance (Firewall Software). This affects an unknown functionality of the component TCP Fast Open. The manipulation with an unknown input leads to a protection mechanism vulnerability. CWE is classifying the issue as CWE-693. The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. This is going to have an impact on integrity.

The weakness was released 01/14/2021 as cisco-sa-snort-tfo-bypass-MmzZrtes. It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2021-1224. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/14/2021).

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Protection mechanism
CWE: CWE-693
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 Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/13/2020 🔍
01/14/2021 +62 days 🔍
01/14/2021 +0 days 🔍
02/14/2021 +31 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-snort-tfo-bypass-MmzZrtes
Status: Confirmed

CVE: CVE-2021-1224 (🔍)
GCVE (CVE): GCVE-0-2021-1224
GCVE (VulDB): GCVE-100-167931

Entryinfo

Created: 01/14/2021 12:25
Updated: 02/14/2021 07:40
Changes: 01/14/2021 12:25 (37), 02/14/2021 07:36 (5), 02/14/2021 07:40 (17)
Complete: 🔍
Cache ID: 216::103

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