Input validation error in Ratpack - CVE-2019-17513
Published: October 18, 2019 / Updated: July 17, 2020
Vulnerability identifier: #VU30722
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-17513
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Ratpack
Affected software:
Ratpack
Ratpack
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to manipulate data.
An issue was discovered in Ratpack before 1.7.5. Due to a misuse of the Netty library class DefaultHttpHeaders, there is no validation that headers lack HTTP control characters. Thus, if untrusted data is used to construct HTTP headers with Ratpack, HTTP Response Splitting can occur.
How to mitigate CVE-2019-17513
Install update from vendor's website.
Sources
- https://github.com/ratpack/ratpack/commit/c560a8d10cb8bdd7a526c1ca2e67c8f224ca23ae
- https://github.com/ratpack/ratpack/commit/efb910d38a96494256f36675ef0e5061097dd77d
- https://github.com/ratpack/ratpack/releases/tag/v1.7.5
- https://github.com/ratpack/ratpack/security/advisories/GHSA-mvqp-q37c-wf9j
- https://ratpack.io/versions/1.7.5