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rusty_paseto vulnerable to private key extraction due to ed25519-dalek dependency

Low severity GitHub Reviewed Published Nov 5, 2023 in rrrodzilla/rusty_paseto • Updated Nov 7, 2023

Package

cargo rusty-paseto (Rust)

Affected versions

<= 0.5.0

Patched versions

0.6.0

Description

Impact

The vulnerability, known as RUSTSEC-2022-0093, impacts the ed25519-dalek crate, which is a dependency of the rusty-paseto crate. This issue arises from a "Double Public Key Signing Function Oracle Attack" affecting versions of ed25519-dalek prior to v2.0. These versions expose an unsafe API for serializing and deserializing 64-byte keypairs that include both private and public keys, creating potential for certain attacks. d25519-dalek users utilizing these serialization and deserialization functions directly could potentially be impacted.

Patches

The vulnerability within the ed25519-dalek crate has been addressed in version 2.0. rusty-paseto has addressed it in release v0.6.0.

Workarounds

Users are recommended to upgrade to v0.6.0 of rusty-paseto. However, users should still ensure that their key serialization and deserialization practices are secure and avoid any practices that could lead to key exposure.

References

More information about RUSTSEC-2022-0093 can be found in the RustSec Advisory Database. Updates and details regarding the upcoming release of rusty-paseto will be documented in the project's releases and changelog. This issue was first reported by Dependabot on 2023-08-15. The source was reviewed by @rrrodzilla at that time and a determination was made that the vulnerability low harm to existing users due to the strongly typed nature of keys provided by the rusty-paseto API. @techport-om reported the vulnerability to the repository by discovering during a cargo-audit run on 2023-11-05 and opened issue 28. This advisory was created at that time to notify existing users.

References

@rrrodzilla rrrodzilla published to rrrodzilla/rusty_paseto Nov 5, 2023
Published to the GitHub Advisory Database Nov 7, 2023
Reviewed Nov 7, 2023
Last updated Nov 7, 2023

Severity

Low

Weaknesses

No CWEs

CVE ID

No known CVE

GHSA ID

GHSA-j57r-4qw6-58r3

Credits

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