Stack-based buffer overflow in Blynk -Library



Published: 2022-06-17
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-29496
CWE-ID CWE-121
Exploitation vector Network
Public exploit N/A
Vulnerable software
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blynk-library
Universal components / Libraries / Libraries used by multiple products

Vendor Blynk IoT platform

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Stack-based buffer overflow

EUVDB-ID: #VU64453

Risk: High

CVSSv3.1: 7.8 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-29496

CWE-ID: CWE-121 - Stack-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the BlynkConsole.h runCommand functionality. A remote unauthenticated attacker can send a specially crafted network request, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

blynk-library: 1.0.1


CPE2.3 External links

http://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1524

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.



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