CVE-2018-20200
First published: Thu Apr 18 2019(Updated: )
** DISPUTED ** CertificatePinner.java in OkHttp 3.x through 3.12.0 allows man-in-the-middle attackers to bypass certificate pinning by changing SSLContext and the boolean values while hooking the application. NOTE: This id is disputed because some parties don't consider this is a vulnerability. Their rationale can be found in https://github.com/square/okhttp/issues/4967.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Squareup Okhttp | >=3.0.0<=3.12.0 | |
| >=3.0.0<=3.12.0 |
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Reference Links
- https://cxsecurity.com/issue/WLB-2018120252
- https://github.com/square/okhttp/commits/master
- https://github.com/square/okhttp/issues/4967
- https://github.com/square/okhttp/releases
- https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f@%3Cdev.drill.apache.org%3E
- https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442@%3Cdev.drill.apache.org%3E
- https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc@%3Cissues.drill.apache.org%3E
- https://lists.apache.org/thread.html/r0dd7ff197b2e3bdd80a0326587ca3d0c22e10d1dba17c769d6da7d7a@%3Cuser.flink.apache.org%3E
- https://lists.apache.org/thread.html/r71100f23778d72fbd8be8baa6baffc159b9c4f3fae3db4826bdc8ab8@%3Cissues.flink.apache.org%3E
- https://lists.apache.org/thread.html/r78bfce980843be61a55615a7680bbf7ac751a9b3515231eab2d32068@%3Cissues.flink.apache.org%3E
- https://lists.apache.org/thread.html/rc436d58531754ac8fe20340044566518ea4dce66aeff9193356a225d@%3Cissues.flink.apache.org%3E
- https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26@%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/recce57e195fbdd856dcf1933c136a8a66d7b02e05e3580f44d75a640@%3Cissues.flink.apache.org%3E
- https://lists.apache.org/thread.html/rfd1eed12ba2a5dff37229edd60fc84a25517815d848994146a15af91@%3Cissues.flink.apache.org%3E
- https://square.github.io/okhttp/3.x/okhttp/
- https://lists.apache.org/thread.html/519eb0fd45642dcecd9ff74cb3e71c20a4753f7d82e2f07864b5108f%40%3Cdev.drill.apache.org%3E
- https://lists.apache.org/thread.html/b0656d359c7d40ec9f39c8cc61bca66802ef9a2a12ee199f5b0c1442%40%3Cdev.drill.apache.org%3E
- https://lists.apache.org/thread.html/f9bc3e55f4e28d1dcd1a69aae6d53e609a758e34d2869b4d798e13cc%40%3Cissues.drill.apache.org%3E
- https://lists.apache.org/thread.html/r0dd7ff197b2e3bdd80a0326587ca3d0c22e10d1dba17c769d6da7d7a%40%3Cuser.flink.apache.org%3E
- https://lists.apache.org/thread.html/r71100f23778d72fbd8be8baa6baffc159b9c4f3fae3db4826bdc8ab8%40%3Cissues.flink.apache.org%3E
- https://lists.apache.org/thread.html/r78bfce980843be61a55615a7680bbf7ac751a9b3515231eab2d32068%40%3Cissues.flink.apache.org%3E
- https://lists.apache.org/thread.html/rc436d58531754ac8fe20340044566518ea4dce66aeff9193356a225d%40%3Cissues.flink.apache.org%3E
- https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E
- https://lists.apache.org/thread.html/recce57e195fbdd856dcf1933c136a8a66d7b02e05e3580f44d75a640%40%3Cissues.flink.apache.org%3E
- https://lists.apache.org/thread.html/rfd1eed12ba2a5dff37229edd60fc84a25517815d848994146a15af91%40%3Cissues.flink.apache.org%3E
Frequently Asked Questions
What is CVE-2018-20200?
CVE-2018-20200 is a vulnerability in OkHttp 3.x through 3.12.0 that allows man-in-the-middle attackers to bypass certificate pinning.
How severe is CVE-2018-20200?
CVE-2018-20200 has a severity rating of 5.9, which is considered medium.
What is the affected software for CVE-2018-20200?
The affected software for CVE-2018-20200 is OkHttp versions 3.0.0 through 3.12.0.
How can an attacker exploit CVE-2018-20200?
An attacker can exploit CVE-2018-20200 by changing the SSLContext and boolean values while hooking the application to bypass certificate pinning.
Are there any references for CVE-2018-20200?
Yes, you can find references for CVE-2018-20200 at the following links: [link 1](https://cxsecurity.com/issue/WLB-2018120252), [link 2](https://github.com/square/okhttp/commits/master), [link 3](https://github.com/square/okhttp/issues/4967).
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- vendor/squareup
- canonical/squareup okhttp
- version/squareup okhttp/3.0.0
- version/squareup okhttp/3.12.0