Vulnerability identifier: #VU72323
Vulnerability risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-295
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Google Android
Operating systems & Components /
Operating system
Vendor:
Description
The vulnerability allows a remote attacker to perform MitM attack.
the vulnerability exists due to improper certificate validation within the verifyHostName in OkHostnameVerifier.java in okhttp library in Android runtime. A remote attacker can force the system to accept a certificate for the wrong domain due to improperly used crypto and perform MitM attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
External links
http://source.android.com/security/bulletin/2021-02-01
http://android.googlesource.com/platform/external/okhttp/+/ddc934efe3ed06ce34f3724d41cfbdcd7e7358fc
http://android.googlesource.com/platform/libcore/+/4076be9a99bad5ff7651540df976c57462c3b8ce
http://bugzilla.redhat.com/show_bug.cgi?id=2154086
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.