VDB-170825 · CVE-2021-23351 · GCVE-0-2021-23351

Pires go-proxyproto up to 0.4.x parseVersion1 resource consumption

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.
3.8	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Pires go-proxyproto up to 0.4.x. The affected element is the function parseVersion1. The manipulation leads to resource consumption. This vulnerability is referenced as CVE-2021-23351. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Pires go-proxyproto up to 0.4.x (Firewall Software) and classified as problematic. This issue affects the function parseVersion1. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.

The weakness was published 03/08/2021 as SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1081577. The advisory is shared at snyk.io. The identification of this vulnerability is CVE-2021-23351. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 0.5.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Firewall Software

Vendor

Pires

Name

go-proxyproto

Version

License

open-source

Website

Product: https://github.com/pires/go-proxyproto/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.0
VulDB Meta Temp Score: 3.9

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CVSSv2info

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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: 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 Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: go-proxyproto 0.5.0
Patch: github.com

Timelineinfo

01/08/2021 🔍
03/08/2021 +59 days 🔍
03/08/2021 +0 days 🔍
03/29/2021 +21 days 🔍

Sourcesinfo

Product: github.com

Advisory: SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1081577
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-23351 (🔍)
GCVE (CVE): GCVE-0-2021-23351
GCVE (VulDB): GCVE-100-170825

Entryinfo

Created: 03/08/2021 10:20
Updated: 03/29/2021 07:36
Changes: 03/08/2021 10:20 (42), 03/29/2021 07:34 (5), 03/29/2021 07:36 (19)
Complete: 🔍
Cache ID: 216::103