VDB-195630 · CVE-2021-44040 · GCVE-0-2021-44040

Apache Traffic Server up to 8.1.3/9.1.1 Request Line Parser input validation

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Apache Traffic Server up to 8.1.3/9.1.1. The affected element is an unknown function of the component Request Line Parser. The manipulation results in input validation. This vulnerability is known as CVE-2021-44040. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache Traffic Server up to 8.1.3/9.1.1. It has been classified as critical. Affected is an unknown functionality of the component Request Line Parser. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 03/23/2022. The advisory is available at lists.apache.org. This vulnerability is traded as CVE-2021-44040 since 11/19/2021. The technical details are unknown and an exploit is not available.

Upgrading to version 8.1.4 or 9.1.2 eliminates this vulnerability.

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Productinfo

Vendor

Apache

Name

Traffic Server

Version

License

open-source

Website

Vendor: https://www.apache.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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 Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Traffic Server 8.1.4/9.1.2

Timelineinfo

11/19/2021 🔍
03/23/2022 +124 days 🔍
03/23/2022 +0 days 🔍
03/25/2022 +2 days 🔍

Sourcesinfo

Vendor: apache.org

Advisory: lists.apache.org
Status: Confirmed

CVE: CVE-2021-44040 (🔍)
GCVE (CVE): GCVE-0-2021-44040
GCVE (VulDB): GCVE-100-195630

Entryinfo

Created: 03/23/2022 17:49
Updated: 03/25/2022 09:08
Changes: 03/23/2022 17:49 (39), 03/25/2022 09:08 (1)
Complete: 🔍
Cache ID: 216::103