CVE-2021-23240

mediumPriorität · verfolgen · 31EPSS 0.011 · 65. PerzentilDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.08% (65th) EPSS

CVSS 4.4 · medium

Is it mine?

24 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · bewertet 2026-10-27

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.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

Behobensudo-0:1.8.29-7.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-0:1.8.29-7.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-0:1.8.29-7.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-0:1.8.29-7.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-0:1.8.29-7.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-debuginfo-0:1.8.29-7.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-debuginfo-0:1.8.29-7.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-debuginfo-0:1.8.29-7.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-debuginfo-0:1.8.29-7.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-debugsource-0:1.8.29-7.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-debugsource-0:1.8.29-7.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-debugsource-0:1.8.29-7.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Behobensudo-debugsource-0:1.8.29-7.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2021:1723
Workaroundsudo-0:1.8.29-7.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-0:1.8.29-7.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-0:1.8.29-7.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-0:1.8.29-7.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-0:1.8.29-7.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-debuginfo-0:1.8.29-7.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-debuginfo-0:1.8.29-7.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-debuginfo-0:1.8.29-7.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-debuginfo-0:1.8.29-7.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-debugsource-0:1.8.29-7.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-debugsource-0:1.8.29-7.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-debugsource-0:1.8.29-7.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.
Workaroundsudo-debugsource-0:1.8.29-7.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)redhat_csaf
* Enable SELinux in enforcing mode. * Enable the symbolic link protection (/proc/sys/fs/protected_symlinks set to 1). * Remove the `sesh` binary (/usr/libexec/sudo/sesh or /usr/lib/sudo/sesh) if SELinux RBAC support is not needed.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 4.4–7.8

v2.04.4mediumAV:L/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USAusnutzbarkeit 3.4 · Auswirkung 6.4

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 1.8 · Auswirkung 5.9

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · Red Hat Product Security US

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-59USprimärCWE-367US

betroffene Produkte (24)

Betroffene Produkte und Versionsbereiche.

IBM InfoSphere Information Serveralle Versionencert_bundDEcpe:/a:ibm:infosphere_information_server:-
IBM QRadar SIEM 7.3alle Versionencert_bundDEcpe:/a:ibm:qradar_siem:7.3
IBM QRadar SIEM 7.4alle Versionencert_bundDEcpe:/a:ibm:qradar_siem:7.4
IBM QRadar SIEM 7.5.0alle Versionencert_bundDEcpe:/a:ibm:qradar_siem:7.5.0
n/a n/a≤ n/aenisa_euvdEU
fedoraproject fedora= 32nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 33nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
netapp hci management nodealle VersionennvdUScpe:2.3:a:netapp:hci_management_node:*:*:*:*:*:*:*:*
netapp solidfirealle VersionennvdUScpe:2.3:a:netapp:solidfire:*:*:*:*:*:*:*:*
sudo project sudo< 1.8.32nvdUScpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*
sudo project sudo1.9.0 → 1.9.5nvdUScpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:*
sudo-0:1.8.29-7.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS
sudo-0:1.8.29-7.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS
sudo-0:1.8.29-7.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS
sudo-0:1.8.29-7.el8.src as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS
sudo-0:1.8.29-7.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS
sudo-debuginfo-0:1.8.29-7.el8.aarch64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS
sudo-debuginfo-0:1.8.29-7.el8.ppc64le as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS
sudo-debuginfo-0:1.8.29-7.el8.s390x as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS
sudo-debuginfo-0:1.8.29-7.el8.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)alle Versionenfixedredhat_csafUS

20 von 24 angezeigt

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

RHSA-2021:1723Red Hat Security Advisory: sudo security and bug fix update2021-05-18csaf · redhat_csafUS
An update for sudo is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
WID-SEC-W-2025-0227IBM QRadar SIEM: Mehrere SchwachstellenDeutsch2021-11-30csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in IBM QRadar SIEM ausnutzen, um seine Privilegien zu erweitern, Administratorrechte zu erlangen, beliebigen Programmcode auszuführen, Informationen offenzulegen, Dateien zu manipulieren oder Sicherheitsvorkehrungen zu umgehen.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd cert_bund nvd redhat_csaf NVD CVE.org MITRE

veröffentlicht 2021-01-12geändert 2026-06-17

verwandt (2,372)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-81963US	high7.8OT kritisch	0.39% (33rd)	KEV	2026-09-08
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.
CVE-2026-41091US	—OT kritisch	8.20% (95th)	KEV	2026-05-20
Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.
CVE-2025-60710US	—OT kritisch	4.61% (92nd)	KEV	2025-11-11
Improper link resolution before file access ('link following') in Host Process for Windows Tasks allows an authorized attacker to elevate privileges locally.
CVE-2025-48384US	—OT kritisch	4.38% (91st)	KEV	2025-07-08
Git is a fast, scalable, distributed revision control system with an unusually rich command set that provides both high-level operations and full access to internals. When reading…
CVE-2025-21391US	—OT kritisch	2.28% (83rd)	KEV	2025-02-11
Windows Storage Elevation of Privilege Vulnerability

+2367 weitere

Referenzen (38)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

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