High severity · published Aug 26, 2019
CVE-2019-15642
rpc.cgi in Webmin through 1.920 allows authenticated Remote Code Execution via a crafted object name because unserialise_variable makes an eval call
8.8
CVSS
36.4%
EPSS
No
On KEV
Description
rpc.cgi in Webmin through 1.920 allows authenticated Remote Code Execution via a crafted object name because unserialise_variable makes an eval call. NOTE: the Webmin_Servers_Index documentation states "RPC can be used to run any command or modify any file on a server, which is why access to it must not be granted to un-trusted Webmin users."
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)36.4% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
Webmin · Webmin
through 1.920 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-15642
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-15642
Vendor Advisory
https://doxfer.webmin.com/Webmin/Webmin_Servers_Index
Patch
https://github.com/webmin/webmin/blob/ab5e00e41ea1ecc1e24b8f8693f3495a0abb1aed/rpc.cgi#L26-L37
Patch
https://github.com/webmin/webmin/commit/df8a43fb4bdc9c858874f72773bcba597ae9432c
Exploit
https://www.calypt.com/blog/index.php/authenticated-rce-on-webmin/
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