Medium severity · published Jan 30, 2017
CVE-2016-2402
OkHttp before 2.7.4 and 3.x before 3.1.2 allows man-in-the-middle attackers to bypass certificate pinning by sending a certificate chain with a certificate from a non-pinned…
5.9
CVSS
1.9%
EPSS
No
On KEV
Description
OkHttp before 2.7.4 and 3.x before 3.1.2 allows man-in-the-middle attackers to bypass certificate pinning by sending a certificate chain with a certificate from a non-pinned trusted CA and the pinned certificate.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OK
Okhttp · Squareup
through 2.7.3 · source: NVD
OK
Okhttp3 · Squareup
3.0.0; 3.0.0; 3.0.1; 3.1.0; 3.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2402
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-2402
Mailing List
http://www.openwall.com/lists/oss-security/2016/02/10/8
Mailing List
http://www.openwall.com/lists/oss-security/2016/02/18/7
Technical Description
https://koz.io/pinning-cve-2016-2402/
lists.apache.org
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E
Vendor Advisory
https://publicobject.com/2016/02/11/okhttp-certificate-pinning-vulnerability/
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