CVE-2020-15078
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.91%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 4.91% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-305, CWE-306
- Affected
- openvpn/openvpn · fedoraproject/fedora · canonical/ubuntu linux · debian/debian linux
- Source
- security@openvpn.net
References
- https://community.openvpn.net/openvpn/wiki/CVE-2020-15078Patch, Vendor Advisory
- https://community.openvpn.net/openvpn/wiki/SecurityAnnouncementsBroken Link
- https://lists.debian.org/debian-lts-announce/2022/05/msg00002.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/
- https://security.gentoo.org/glsa/202105-25Third Party Advisory
- https://usn.ubuntu.com/usn/usn-4933-1Third Party Advisory
- https://community.openvpn.net/openvpn/wiki/CVE-2020-15078Patch, Vendor Advisory
- https://community.openvpn.net/openvpn/wiki/SecurityAnnouncementsBroken Link
- https://lists.debian.org/debian-lts-announce/2022/05/msg00002.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/
- https://security.gentoo.org/glsa/202105-25Third Party Advisory
- https://usn.ubuntu.com/usn/usn-4933-1Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.