Vulnerability identifier: #VU9955

Vulnerability risk: Low

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2017-14460

CWE-ID: CWE-942

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Parity-Ethereum
Universal components / Libraries / Software for developers

Vendor: Parity Technologies

Description
The vulnerability allows a remote attacker to gain elevated privileges on the target system.

The weakness exists due to an insufficient validation of user-supplied input. A remote attacker can send JSON object to JSON-RPC endpoint, trick the victim into visiting a specially crafted website, trigger overly permissive cross-domain (CORS) whitelist vulnerability in JSON-RPC and gain elevated privileges to perform further attacks.

Mitigation
Cybersecurity Help is currently unaware of any solutions addressing the vulnerability.

Vulnerable software versions

Parity-Ethereum: 1.7.8

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0508

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Q & A

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.