CVE-2023-41879

Magento LTS is the official OpenMage LTS codebase. Guest orders may be viewed without authentication using a guest-view cookie which contains the orders protect_code. This code is 6 hexadecimal characters which is arguably not enough to prevent a brute-force attack. Exposing each order would require a separate brute force attack. This issue has been patched in versions 19.5.1 and 20.1.1.

Weakness

The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

Affected Software

Potential Mitigations

• Use a well-vetted algorithm that is currently considered to be strong by experts in the field, and select well-tested implementations with adequate length seeds.
• In general, if a pseudo-random number generator is not advertised as being cryptographically secure, then it is probably a statistical PRNG and should not be used in security-sensitive contexts.
• Pseudo-random number generators can produce predictable numbers if the generator is known and the seed can be guessed. A 256-bit seed is a good starting point for producing a “random enough” number.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/112.html
• https://cwe.mitre.org/data/definitions/485.html
• https://cwe.mitre.org/data/definitions/59.html

References

• https://github.com/OpenMage/magento-lts/commit/2a2a2fb504247e8966f8ffc2e17d614be5d43128
• https://github.com/OpenMage/magento-lts/commit/31e74ac5d670b10001f88f038046b62367f15877
• https://github.com/OpenMage/magento-lts/releases/tag/v19.5.1
• https://github.com/OpenMage/magento-lts/releases/tag/v20.1.1
• https://github.com/OpenMage/magento-lts/security/advisories/GHSA-9358-cpvx-c2qp