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CVE-2024-7478

MEDIUMCVSS 5.8/10EPSS 0.24%

Last modified

CVE-2024-7478 is a medium-severity vulnerability rated 5.8/10 on the CVSS scale. When a WSO2 product is configured to use an external user store, the system fails to adequately obscure the existence or validity of usernames during authentication attempts. This oversight allows an attacker to repeatedly query the authentication mechanism with different username guesses, enabling the enumeration of valid usernames present in the external user store. The discovery of valid usernames can increase the risk of targeted brute-force attacks, social engineering, and information leakage. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

When a WSO2 product is configured to use an external user store, the system fails to adequately obscure the existence or validity of usernames during authentication attempts. This oversight allows an attacker to repeatedly query the authentication mechanism with different username guesses, enabling the enumeration of valid usernames present in the external user store. The discovery of valid usernames can increase the risk of targeted brute-force attacks, social engineering, and information leakage. Attackers can leverage this information to craft more convincing phishing campaigns or other social engineering tactics to trick users into revealing sensitive data. The presence of username enumeration could also negatively impact an organization's reputation, leading to loss of customer trust, regulatory non-compliance, and potential legal and financial repercussions.

Metrics

CVSS 3.1
5.8/10

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

EPSS Probability
0.24%

14.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
WSO2WSO2 API Manager< 3.1.0; >= 3.1.0, < 3.1.0.310; >= 3.2.0, < 3.2.0.401; >= 3.2.1, < 3.2.1.26; >= 4.0.0, < 4.0.0.318; >= 4.1.0, < 4.1.0.180; >= 4.2.0, < 4.2.0.119; >= 4.3.0, < 4.3.0.30
WSO2WSO2 Identity Server as Key Manager< 5.10.0; >= 5.10.0, < 5.10.0.320
WSO2WSO2 Identity Server< 5.10.0; >= 5.10.0, < 5.10.0.326; >= 6.0.0, < 6.0.0.214; >= 6.1.0, < 6.1.0.198; >= 7.0.0, < 7.0.0.67
WSO2WSO2 Open Banking IAM< 2.0.0; >= 2.0.0, < 2.0.0.371
WSO2WSO2 Open Banking AM< 2.0.0; >= 2.0.0, < 2.0.0.351
WSO2WSO2 Carborn Identity Handler>= 1.4.0, < 1.4.0.15; >= 1.4.0, < 1.4.0.16; >= 1.4.11, < 1.4.11.14; >= 1.4.37, < 1.4.37.1; >= 1.6.1, < 1.6.1.5; >= 1.7.1, < 1.7.1.1; >= 1.8.6, < 1.8.6.5; >= 1.8.14, < 1.8.14.1; >= 1.9.2, < 1.9.2.4

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2024-7478?
When a WSO2 product is configured to use an external user store, the system fails to adequately obscure the existence or validity of usernames during authentication attempts. This oversight allows an attacker to repeatedly query the authentication mechanism with different username guesses, enabling the enumeration of valid usernames present in the external user store. The discovery of valid usernames can increase the risk of targeted brute-force attacks, social engineering, and information leakage. Attackers can leverage this information to craft more convincing phishing campaigns or other social engineering tactics to trick users into revealing sensitive data. The presence of username enumeration could also negatively impact an organization's reputation, leading to loss of customer trust, regulatory non-compliance, and potential legal and financial repercussions.
How severe is CVE-2024-7478?
CVE-2024-7478 has a CVSS score of 5.8/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.
How do I fix CVE-2024-7478?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST