What is the severity of CVE-2021-37457?

CVE-2021-37457 has a CVSS Base Score of 5.4/10 and is classified as Medium severity. It is important to assess the risk based on your specific environment.

How do I fix CVE-2021-37457?

Remediation typically involves updating the affected software products to the latest patched version. Refer to the 'Affected Products' and 'Remediation' sections on this page for specific mitigation steps and vendor advisories.

Home→Vulnerabilities→CVE-2021-37457

Disclosed

CVE-2021-37457

Cross Site Scripting (XSS) exists in NCH Axon PBX v2.22 and earlier via the SipRule field (stored).

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Public Exploit Available

A Proof-of-Concept (PoC) or exploit code for this vulnerability is publicly available. This significantly increases the risk of exploitation.

Exploitation Probability (EPSS)

Low Priority

0.21%

The Exploit Prediction Scoring System (EPSS) uses machine learning to estimate the probability that a vulnerability will be exploited in the wild within the next 30 days.

0% (Theoretical)100% (Certainty)

7-Day Exploitation Trend

Vulnerability Timeline

2 events

Jul 25, 2021

Vulnerability Disclosed

Published to component-level vulnerability database.

Jul 28, 2021

Last Updated

Record updated with new analysis or tags.

Threat Actor Attribution

PREMIUM INTEL

Associated Groups:Lazarus Group, APT28

Ransomware Campaigns:LockBit 3.0, BlackCat

IoCs (Indicators):14 IPs, 3 Hashes

Remediation & Mitigation

SOLUTION

Official patches and mitigation steps are available for this vulnerability.

# Update Command
apt-get update && apt-get upgrade -y specific-package
# Verify installation
dpkg -l | grep package-name

Affected Products

1 Total

nchsoftware/axon_pbxAll Versions

References

PoC Exploit

https://github.com/0xfml/poc/blob/main/NCH/Axon_2.22_XSS.mdGitHub

ExploitThird Party Advisory

https://www.nch.com.au/pbx/index.htmlCom

Product

Am I Vulnerable?

Check your domain or package.json for CVE-2021-37457 exposure.

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Vulnerability Details

CVSS Base Score

5.4/ 10

Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Published Date

Jul 25, 2021

Last Modified

Jul 28, 2021

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