Vulnerability Details : CVE-2016-1133
CRLF injection vulnerability in the on_req function in lib/handler/redirect.c in H2O before 1.6.2 and 1.7.x before 1.7.0-beta3 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via a crafted URI.
Exploit prediction scoring system (EPSS) score for CVE-2016-1133
Probability of exploitation activity in the next 30 days: 0.47%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 72 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-1133
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:P/A:N |
8.6
|
2.9
|
NIST |
|
3.7
|
LOW | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |
2.2
|
1.4
|
NIST |
References for CVE-2016-1133
-
https://github.com/h2o/h2o/issues/682
HTTP response splitting · Issue #682 · h2o/h2o · GitHub
-
https://h2o.examp1e.net/vulnerabilities.html#CVE-2016-1133
Vulnerabilities - H2O - the optimized HTTP/2 server
-
http://jvn.jp/en/jp/JVN45928828/index.html
JVN#45928828: H2O vulnerable to HTTP header injectionVendor Advisory
-
http://jvndb.jvn.jp/jvndb/JVNDB-2016-000003
JVNDB-2016-000003 - JVN iPedia - 脆弱性対策情報データベースVendor Advisory
-
https://github.com/h2o/h2o/issues/684
uri-escape the user-supplied portion of the redirect path (CVE-2016-1133) by kazuho · Pull Request #684 · h2o/h2o · GitHub
Products affected by CVE-2016-1133
- cpe:2.3:a:dena:h2o:*:*:*:*:*:*:*:*
- cpe:2.3:a:dena:h2o:1.7.0:beta2:*:*:*:*:*:*