Improper Neutralization of Special Elements in Output Used by a Downstream Component in nrpe (Alpine package)
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-6581 |
| CWE-ID | CWE-74 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
nrpe (Alpine package) Operating systems & Components / Operating system package or component |
| Vendor | Alpine Linux Development Team |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Improper Neutralization of Special Elements in Output Used by a Downstream Component
EUVDB-ID: #VU48930
Risk: High
CVSSv4.0: 5.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2020-6581
Exploit availability: No
DescriptionThe vulnerability allows a remote authenticated user to execute arbitrary code.
Nagios NRPE 3.2.1 has Insufficient Filtering because, for example, nasty_metachars interprets as the character and the character n (not as the newline sequence). This can cause command injection.
MitigationInstall update from vendor's website.
Vulnerable software versionsnrpe (Alpine package): 3.2.1-r0 - 3.2.1-r2
CPE2.3- cpe:2.3:a:alpine:nrpe_alpine_package:3.2.1-r0:*:*:*:*:alpine_linux:*:3.9
- cpe:2.3:a:alpine:nrpe_alpine_package:3.2.1-r1:*:*:*:*:alpine_linux:*:3.9
- cpe:2.3:a:alpine:nrpe_alpine_package:3.2.1-r2:*:*:*:*:alpine_linux:*:3.9
https://git.alpinelinux.org/aports/commit/?id=01b1c95659941056bc9ea4bee6501ff84ac003ad
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
