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GoogleOSV:CVE-2021-23240

HistoryJan 12, 2021 - 9:15 a.m.

CVE-2021-23240

2021-01-1209:15:14

Google

osv.dev

17

sudo

vulnerability

local user

file ownership

privilege escalation

selinux

rbac support

permissive mode

software security

AI Score

6.9

Confidence

High

EPSS

0.001

Percentile

40.7%

selinux_edit_copy_tfiles in sudoedit in Sudo before 1.9.5 allows a local unprivileged user to gain file ownership and escalate privileges by replacing a temporary file with a symlink to an arbitrary file target. This affects SELinux RBAC support in permissive mode. Machines without SELinux are not vulnerable.

References

bugzilla.suse.com/show_bug.cgi?id=CVE-2021-23240

lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E

lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EE42Y35SMJOLONAIBNYNFC7J44UUZ2Y6/

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GMY4VSSBIND7VAYSN6T7XIWJRWG4GBB3/

security.gentoo.org/glsa/202101-33

security.netapp.com/advisory/ntap-20210129-0010/

www.sudo.ws/stable.html#1.9.5

AI Score

6.9

Confidence

High

EPSS

0.001

Percentile

40.7%

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