Input validation error in ModSecurity - CVE-2019-19886
Published: January 22, 2020
Vulnerability identifier: #VU24491
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-19886
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Trustwave
Affected software:
ModSecurity
ModSecurity
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in "Transaction::addRequestHeader" in transaction.cc. A remote attacker can send specially crafted crafted requests to the server and cause a denial of service condition on the target system.
How to mitigate CVE-2019-19886
Install updates from vendor's website.