PT-2022-10170 · Moxa · Moxa Nport Iaw5000A-I/O

Evgeniy Druzhinin + 2 · Published 2022-04-01 · Updated 2022-04-11 · CVE-2021-32976

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 Moxa NPort IAW5000A-I/O series firmware versions 2.2 or earlier

Description The issue is related to five buffer overflows in the built-in web server of the Moxa NPort IAW5000A-I/O series. This may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.

Recommendations For Moxa NPort IAW5000A-I/O series firmware versions 2.2 or earlier, update to a version later than 2.2 to resolve the issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

CVE-2021-32976

Affected Products

Moxa Nport Iaw5000A-I/O

References · 7

• https://osv.dev/vulnerability/CVE-2021-32976 · Vendor Advisory
• https://moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32976 · Security Note
• https://t.me/cvenotify/28314 · Telegram Post
• https://t.me/cvenotify/28313 · Telegram Post
• https://t.me/cibsecurity/40064 · Telegram Post
• https://cisa.gov/uscert/ics/advisories/icsa-21-187-01 · Note