CVE-2023-32694 : Exploit Details and Defense Strategies

This CVE affects Saleor where the

validate_hmac_signature

function is vulnerable to timing attacks, posing a security risk when the Adyen plugin is enabled. Malicious users could exploit this vulnerability to compromise database integrity by falsifying events. Learn more about the impact, technical details, and mitigation steps below.

Understanding CVE-2023-32694

Saleor's

validate_hmac_signature

function is susceptible to timing attacks when the Adyen plugin is active.

What is CVE-2023-32694?

CVE-2023-32694 involves a non-constant time HMAC comparison in the Adyen plugin within Saleor. This vulnerability can be exploited by malicious actors to manipulate event integrity.

The Impact of CVE-2023-32694

The vulnerability allows attackers to determine secret keys and falsify events, risking database integrity. This can lead to unauthorized actions like marking orders as paid incorrectly.

Technical Details of CVE-2023-32694

The vulnerability lies in Saleor's

validate_hmac_signature

function, making it susceptible to timing attacks when the Adyen plugin is active.

Vulnerability Description

The vulnerability allows malicious users to abuse timing attacks on Saleor deployments with the Adyen plugin enabled, compromising database integrity.

Affected Systems and Versions

Saleor versions ranging from 2.11.0 to 3.13.16 are affected by this vulnerability, with specific versions being patched to address the issue.

Exploitation Mechanism

Attackers can exploit the non-constant time HMAC comparison to forge fake events, impacting database integrity and potentially leading to unauthorized actions.

Mitigation and Prevention

It is crucial for users to take immediate steps to secure their Saleor deployments and implement long-term security practices to prevent similar vulnerabilities.

Immediate Steps to Take

Users are advised to update their Saleor installations to the patched versions provided by the vendor to mitigate the risk of exploitation.

Long-Term Security Practices

Maintaining up-to-date software versions, monitoring for security advisories, and implementing secure coding practices can help prevent similar vulnerabilities in the future.

Patching and Updates

Saleor has released patches for versions 3.7.68, 3.8.40, 3.9.49, 3.10.36, 3.11.35, 3.12.25, and 3.13.16 to address the vulnerability, emphasizing the importance of updating to secure versions.