CVE-2021-29508
Last modified
CVE-2021-29508 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. Due to how Wire handles type information in its serialization format, malicious payloads can be passed to a deserializer. e.g. EPSS estimates a 1.58% chance of exploitation in the next 30 days.
Description
Due to how Wire handles type information in its serialization format, malicious payloads can be passed to a deserializer. e.g. using a surrogate on the sender end, an attacker can pass information about a different type for the receiving end. And by doing so allowing the serializer to create any type on the deserializing end. This is the same issue that exists for .NET BinaryFormatter https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300?view=vs-2019. This also applies to the fork of Wire.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Asynkron | Wire | All versions |
References
- https://github.com/AsynkronIT/Wire/security/advisories/GHSA-hpw7-3vq3-mmv6Exploit, Third Party Advisory
- https://www.nuget.org/packages/Wire/Third Party Advisory
- https://github.com/AsynkronIT/Wire/security/advisories/GHSA-hpw7-3vq3-mmv6Exploit, Third Party Advisory
- https://www.nuget.org/packages/Wire/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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