Vulnerability identifier: #VU65499

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-31684

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
json-smart
Universal components / Libraries / Software for developers

Vendor: netplex

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within indexOf() function of JSONParserByteArray. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

json-smart: 1.1 - 2.4.1

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External links
http://github.com/netplex/json-smart-v1/issues/10
http://github.com/netplex/json-smart-v1/pull/11
http://github.com/netplex/json-smart-v2/issues/67
http://github.com/netplex/json-smart-v2/pull/68

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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.