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[email protected]CVE-2020-26131

HistoryOct 28, 2020 - 6:15 p.m.

CVE-2020-26131

2020-10-2818:15:13

CWE-732

[email protected]

web.nvd.nist.gov

open dhcp server

access restrictions

privilege elevation

cve-2020-26131

nvd

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.8%

JSON

Issues were discovered in Open DHCP Server (Regular) 1.75 and Open DHCP Server (LDAP Based) 0.1Beta. Due to insufficient access restrictions in the default installation directory, an attacker can elevate privileges by replacing the OpenDHCPServer.exe (Regular) or the OpenDHCPLdap.exe (LDAP Based) binary.

Affected configurations

NVD

Node

open_dhcp_server_projectopen_dhcp_serverMatch0.1betaldap

open_dhcp_server_projectopen_dhcp_serverMatch1.75regular

CPENameOperatorVersion
open_dhcp_server_project:open_dhcp_serveropen dhcp server project open dhcp servereq0.1
open_dhcp_server_project:open_dhcp_serveropen dhcp server project open dhcp servereq1.75

CPE	Name	Operator	Version
open_dhcp_server_project:open_dhcp_server	open dhcp server project open dhcp server	eq	0.1
open_dhcp_server_project:open_dhcp_server	open dhcp server project open dhcp server	eq	1.75

References

github.com/an0ry/advisories

github.com/OffensiveOceloot/advisories/blob/main/CVE-2020-26131.md

sourceforge.net/projects/dhcpserver/

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.8%

JSON

Related for CVE-2020-26131

nvd1 prion1 cvelist1