Vulnerability identifier: #VU98715
Vulnerability risk: Medium
CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-400
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
OkHttp
Mobile applications /
Libraries for mobile applications
Vendor: Square
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability occurs when using a BrotliInterceptor and surfing to a malicious web server, or when an attacker can perform MitM to inject a Brotli zip-bomb into an HTTP response. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
OkHttp: All versions
External links
http://research.jfrog.com/vulnerabilities/okhttp-client-brotli-dos/
http://github.com/square/okhttp/issues/7738
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.