CVE-2024-45808 Malicious log injection via access logs in envoy

What is CVE-2024-45808?

CVE-2024-45808 is a medium-severity vulnerability in Envoyproxy Envoy, published on 19 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Envoy is a cloud-native high-performance edge/middle/service proxy. A vulnerability has been identified in Envoy that allows malicious attackers to inject unexpected content into access logs. This is achieved by exploiting the lack of validation for the `REQUESTED_SERVER_NAME` field for access loggers. This issue has been addressed in versions 1.31.2, 1.30.6, 1.29.9, and 1.28.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-116, CWE-117

Which versions are affected by CVE-2024-45808?

1 open source package ship an affected version, including envoy. It affects 1 product.

Products include Envoyproxy Envoy.

How do I fix CVE-2024-45808?

Upgrade envoy to a fixed version for your release line: 1.28.7, 1.29.9, 1.30.6 or 1.31.2.

Is CVE-2024-45808 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-45808 exists.

Other vulnerabilities in Envoyproxy Envoy

• CVE-2022-29226 Trivial authentication bypass in Envoy Critical 10.0
• CVE-2019-18801 Memory corruption in n/a Critical 9.8
• CVE-2019-18802 Security feature bypass in n/a Critical 9.8
• CVE-2020-35470 Information disclosure in n/a High 8.8
• CVE-2024-23324 Envoy ext auth can be bypassed when Proxy protocol filter sets invalid UTF-8 metadata High 8.6

All Envoyproxy Envoy vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-envoy-2024-45808, GHSA-p222-xhp9-39rc.