openEuler update for sudo
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-22809 |
| CWE-ID | CWE-20 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
openEuler Operating systems & Components / Operating system sudo-help Operating systems & Components / Operating system package or component sudo-debugsource Operating systems & Components / Operating system package or component sudo-debuginfo Operating systems & Components / Operating system package or component sudo-devel Operating systems & Components / Operating system package or component sudo Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Input validation error
EUVDB-ID: #VU71332
Risk: Low
CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]
CVE-ID: CVE-2023-22809
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists within the sudoedit (aka -e) feature due to insufficient validation of user-supplied input passed in the user-provided environment variables (SUDO_EDITOR, VISUAL, and EDITOR). The problem exists because a user-specified editor may contain a "--"
argument that defeats a protection mechanism, e.g., an EDITOR='vim --
/path/to/extra/file' value. A local user can append arbitrary entries to the list of files to process and escalate privileges on the system.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 22.03 LTS
sudo-help: before 1.9.2-10
sudo-debugsource: before 1.9.2-10
sudo-debuginfo: before 1.9.2-10
sudo-devel: before 1.9.2-10
sudo: before 1.9.2-10
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:22.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:a:openeuler:sudo-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:sudo-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:sudo-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:sudo-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:sudo:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1049
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.
