High severity · published Apr 13, 2023
CVE-2023-30630
Dmidecode before 3.5 allows -dump-bin to overwrite a local file
7.1
CVSS
0.5%
EPSS
No
On KEV
Description
Dmidecode before 3.5 allows -dump-bin to overwrite a local file. This has security relevance because, for example, execution of Dmidecode via Sudo is plausible. NOTE: Some third parties have indicated the fix in 3.5 does not adequately address the vulnerability. The argument is that the proposed patch prevents dmidecode from writing to an existing file. However, there are multiple attack vectors that would not require overwriting an existing file that would provide the same level of unauthorized privilege escalation (e.g. creating a new file in /etc/cron.hourly).
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DM
Dmidecode · Nongnu
before 3.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-30630
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-30630
Not Applicable
https://git.savannah.nongnu.org/cgit/dmidecode.git/commit/?id=6ca381c1247c81f74e1ca4e7706f70bdda72e6f2
Not Applicable
https://git.savannah.nongnu.org/cgit/dmidecode.git/commit/?id=d8cfbc808f387e87091c25e7d5b8c2bb348bb206
Exploit
https://github.com/adamreiser/dmiwrite
Mailing List
https://lists.nongnu.org/archive/html/dmidecode-devel/2023-03/msg00003.html
