CVE-2021-20740: OS Command Injection
First published: Mon Jun 28 2021(Updated: )
Hitachi Virtual File Platform Versions prior to 5.5.3-09 and Versions prior to 6.4.3-09, and NEC Storage M Series NAS Gateway Nh4a/Nh8a versions prior to FOS 5.5.3-08(NEC2.5.4a) and Nh4b/Nh8b, Nh4c/Nh8c versions prior to FOS 6.4.3-08(NEC3.4.2) allow remote authenticated attackers to execute arbitrary OS commands with root privileges via unspecified vectors.
Credit: vultures@jpcert.or.jp
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Hitachi Virtual File Platform | <6.4.3-09 | |
| Hitachi Virtual File Platform | <5.5.3-09 | |
| Nec Nas Gateway Nh4a Firmware | <fos_5.5.3-08\(nec2.5.4a\) | |
| Nec Nas Gateway Nh4a | ||
| Nec Nas Gateway Nh8a Firmware | <fos_5.5.3-08\(nec2.5.4a\) | |
| Nec Nas Gateway Nh8a | ||
| Nec Nas Gateway Nh4b Firmware | <fos_6.4.3-08\(nec3.4.2\) | |
| Nec Nas Gateway Nh4b | ||
| Nec Nas Gateway Nh8b Firmware | <fos_6.4.3-08\(nec3.4.2\) | |
| Nec Nas Gateway Nh8b | ||
| Nec Nas Gateway Nh4c Firmware | <fos_6.4.3-08\(nec3.4.2\) | |
| Nec Nas Gateway Nh4c | ||
| Nec Nas Gateway Nh8c Firmware | <fos_6.4.3-08\(nec3.4.2\) | |
| Nec Nas Gateway Nh8c |
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Reference Links
Frequently Asked Questions
What is CVE-2021-20740?
CVE-2021-20740 is a critical vulnerability found in Hitachi Virtual File Platform versions prior to 5.5.3-09 and versions prior to 6.4.3-09, as well as NEC Storage M Series NAS Gateway Nh4a/Nh8a versions prior to FOS 5.5.3-08(NEC2.5.4a) and Nh4b/Nh8b, Nh4c/Nh8c versions prior to FOS 6.4.3-08(NEC3.4.2) that allows remote authenticated attackers to execute arbitrary code.
How severe is CVE-2021-20740?
CVE-2021-20740 has a severity rating of 8.8, which is considered critical.
Which software versions are affected by CVE-2021-20740?
Hitachi Virtual File Platform versions prior to 5.5.3-09 and versions prior to 6.4.3-09, as well as NEC Storage M Series NAS Gateway Nh4a/Nh8a versions prior to FOS 5.5.3-08(NEC2.5.4a) and Nh4b/Nh8b, Nh4c/Nh8c versions prior to FOS 6.4.3-08(NEC3.4.2) are affected by CVE-2021-20740.
How can remote authenticated attackers exploit CVE-2021-20740?
Remote authenticated attackers can exploit CVE-2021-20740 to execute arbitrary code.
Are there any references for CVE-2021-20740?
Yes, you can find references for CVE-2021-20740 at the following URLs: [Reference 1](https://jpn.nec.com/security-info/secinfo/nv21-011.html), [Reference 2](https://jvn.jp/en/jp/JVN21298724/index.html), [Reference 3](https://www.hitachi.co.jp/products/it/storage-solutions/global/sec_info/2021/2021_306.html)
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- canonical/nec nas gateway nh4a firmware
- canonical/nec nas gateway nh4a
- canonical/nec nas gateway nh8a firmware
- canonical/nec nas gateway nh8a
- canonical/nec nas gateway nh4b firmware
- canonical/nec nas gateway nh4b
- canonical/nec nas gateway nh8b firmware
- canonical/nec nas gateway nh8b
- canonical/nec nas gateway nh4c firmware
- canonical/nec nas gateway nh4c
- canonical/nec nas gateway nh8c firmware
- canonical/nec nas gateway nh8c