CVE-2023-22843

Stored Cross-Site Scripting (XSS) in Threat Intelligence rules in Guardian/CMC before 22.6.2

Description

An authenticated attacker with administrative access to the web management interface can inject malicious JavaScript code inside the definition of a Threat Intelligence rule, that will be stored and can later be executed by another legitimate user viewing the details of such a rule. Via stored Cross-Site Scripting (XSS), an attacker may be able to perform unauthorized actions on behalf of legitimate users and/or gather sensitive information. JavaScript injection was possible in the contents for Yara rules, while limited HTML injection has been proven for packet and STYX rules.

Remediation

Solution:

  • Upgrade to v22.6.2 or later.

Workaround:

  • Use internal firewall features to limit access to the web management interface.

Category

7.3
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.09%
Vendor Advisory nozominetworks.com
Affected: Nozomi Networks Guardian
Affected: Nozomi Networks CMC
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-22843?
CVE-2023-22843 has been scored as a high severity vulnerability.
How to fix CVE-2023-22843?
To fix CVE-2023-22843: Upgrade to v22.6.2 or later.
Is CVE-2023-22843 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-22843 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-22843?
CVE-2023-22843 affects Nozomi Networks Guardian, Nozomi Networks CMC.
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