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CVE-2020-15078

Good to know:

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Date: April 26, 2021

OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks.

Language: C

Severity Score

Related Resources (20)

https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements
https://github.com/OpenVPN/openvpn/commit/3aca477a1b58714754fea3a26d0892fffc51db6b
https://security.gentoo.org/glsa/202105-25
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/
https://github.com/OpenVPN/openvpn/commit/f7b3bf067ffce72e7de49a4174fd17a3a83f0573
https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-15078
https://security.alpinelinux.org/vuln/CVE-2020-15078
https://nvd.nist.gov/vuln/detail/CVE-2020-15078
https://security-tracker.debian.org/tracker/CVE-2020-15078
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/
https://security.archlinux.org/CVE-2020-15078
https://community.openvpn.net/openvpn/wiki/CVE-2020-15078?__cf_chl_jschl_tk__=3bad44142a4cb8deaeded458d11511821a9b2ae9-1619348101-0-AS6k769tBO1EmCmJvi3qBlZvFb0xpmLT558ly9MdXRys95_rH-R--C2ExQLslCHL1dt9jxbYrq_0183tHaqYxeU6Bz8FG7xJaQgsdMa5ez7se6a2NNMgVp5ZNtXfR4pUCf8cUbkLT9fxRbSYfptsIyddOzaTPvNfEIm9tyhhNu4utDtxuVGoTagkTD4psPjy6gPic3-yNGrOQPI6EfS6gKL12QVtXDJhcmSJ2lsZ4VTY6y1ThalUmtn093c4ekxhKcg7HUkFCVWCIRTBRquvBw3LCESZxpPjwZ8d5tX5AnyEc0DQPXphPkb5BOnm072FzttfVMgMlZ8F-tK1ew1WbL4QpUdGJaSZX3D4LWvWNsni_Cn_or1R1GNJV8jcyI4me4xfV0XVbFmvi5Tkxv06p-ybKQABIVhMGbBgBRAl-rjM
https://usn.ubuntu.com/usn/usn-4933-1
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/
https://community.openvpn.net/openvpn/wiki/CVE-2020-15078
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/
https://www.mend.io/vulnerability-database/CVE-2020-15078

Severity Score

Weakness Type (CWE)

Authentication Issues

CWE-287

Missing Authentication for Critical Function

CWE-306

Authentication Bypass by Primary Weakness

CWE-305

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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