SB2021110820 - Host header injection in YouTrack
Published: November 8, 2021
Security Bulletin ID
SB2021110820
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Injection (CVE-ID: CVE-2021-43185)
CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to improper validation of HTTP headers. A remote attacker can inject arbitrary Host header and perform spoofing attack.
Remediation
Install update from vendor's website.