CVE-2021-32976
published 2022-04-01CVE-2021-32976: Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a…
PriorityP359critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.62%
83.7th percentile
Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| moxa | nport_iaw5000a-i_o_series_firmware | unspecified – 2.2 | — |
| moxa | nport_iaw5150a-12i_o_firmware | <= 2.2 | — |
| moxa | nport_iaw5150a-6i_o_firmware | <= 2.2 | — |
| moxa | nport_iaw5250a-12i_o_firmware | <= 2.2 | — |
| moxa | nport_iaw5250a-6i_o_firmware | <= 2.2 | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
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CISA ICS
Moxa NPort IAW5000A-I/O Series Serial Device Server
cisa_ics·2021-07-06·CVSS 7.5
[HIGH] Moxa NPort IAW5000A-I/O Series Serial Device Server
## Archived Content In an effort to keep CISA.gov current, the archive contains outdated information that may not reflect current policy or programs.
ICS Advisory
##
Moxa NPort IAW5000A-I/O Series Serial Device Server
Last RevisedJuly 06, 2021
Alert CodeICSA-21-187-01
## 1. EXECUTIVE SUMMARY
- CVSS v3 9.8
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Moxa
- Equipment: NPort IAW5000A-I/O Series Wireless Device Server
- Vulnerabilities: Classic Buffer Overflow, Stack-based Buffer Overflow, Improper Input Validation, OS Command Injection
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could crash the device being accessed, cause a buffer overflow condition, or allow remote code execution.
## 3.
GHSA
GHSA-gr95-77pj-2gv2: Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2
ghsa_unreviewed·2022-04-03
CVE-2021-32976 [CRITICAL] CWE-787 GHSA-gr95-77pj-2gv2: Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2
Five buffer overflows in the built-in web server in Moxa NPort IAW5000A-I/O series firmware version 2.2 or earlier may allow a remote attacker to initiate a denial-of-service attack and execute arbitrary code.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilitieshttps://www.cisa.gov/uscert/ics/advisories/icsa-21-187-01https://www.moxa.com/en/support/product-support/security-advisory/nport-iaw5000a-io-serial-device-server-vulnerabilities
2022-04-01
Published