PT-2022-19659 · Blynk · Blynk

Francesco Benvenuto · Published 2022-06-17 · Updated 2022-06-28 · CVE-2022-29496

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Blynk -Library version 1.0.1

Description A stack-based buffer overflow vulnerability exists in the BlynkConsole.h runCommand functionality. This issue can be triggered by a specially-crafted network request, potentially leading to command execution. An attacker can exploit this vulnerability by sending a malicious network request.

Recommendations For Blynk -Library version 1.0.1, consider disabling the runCommand functionality in BlynkConsole.h as a temporary workaround until a patch is available. Restrict access to the vulnerable functionality to minimize the risk of exploitation. Avoid using the vulnerable runCommand function until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

CVE-2022-29496

Affected Products

Blynk

References · 5

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2022-1524 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2022-29496 · Security Note
• https://osv.dev/vulnerability/CVE-2022-29496 · Vendor Advisory
• https://t.me/cvenotify/32294 · Telegram Post
• https://t.me/cibsecurity/44756 · Telegram Post