CVE-2021-30120

mediumPriorität · verfolgen · 32EPSS 0.057 · 93. PerzentilEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

5.70% (93rd) EPSS

CVSS 5 · medium

Is it mine?

2 products

Prüfe deine Angriffsfläche

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · bewertet 2026-10-28

Kaseya VSA before 9.5.7 allows attackers to bypass the 2FA requirement. The need to use 2FA for authentication in enforce client-side instead of server-side and can be bypassed using a local proxy. Thus rendering 2FA useless. Detailed description --- During the login process, after the user authenticates with username and password, the server sends a response to the client with the booleans MFARequired and MFAEnroled. If the attacker has obtained a password of a user and used an intercepting proxy (e.g. Burp Suite) to change the value of MFARequered from True to False, there is no prompt for the second factor, but the user is still logged in.

cvss

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

9.9

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–critical · 5–9.9

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 10 · Auswirkung 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 3.6

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.9criticalCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hsecondary · cve@mitre.org USAusnutzbarkeit 3.1 · Auswirkung 6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Hsecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-669USprimär

betroffene Produkte (2)

Betroffene Produkte und Versionsbereiche.

n/a n/a≤ n/aenisa_euvdEU
kaseya vsa≤ 9.5.6nvdUScpe:2.3:a:kaseya:vsa:*:*:*:*:*:*:*:*

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

veröffentlicht 2021-07-09geändert 2026-08-14

verwandt (128)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2026-31431US	—OT kritisch	98.1% (100th)	KEV	2026-04-22
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the c…
CVE-2021-22900US	high7.2OT kritisch	14.1% (97th)	KEV	2021-05-27
A vulnerability allowed multiple unrestricted uploads in Pulse Connect Secure before 9.1R11.4 that could lead to an authenticated administrator to perform a file write via a malici…
CVE-2019-13025US	critical9.8	3.35% (89th)	Exploit	2019-10-02
Compal CH7465LG CH7465LG-NCIP-6.12.18.24-5p8-NOSH devices have Incorrect Access Control because of Improper Input Validation. The attacker can send a maliciously modified POST (HTT…
CVE-2020-1048US	high7.8	16.5% (97th)	Exploit	2020-05-21
An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system. An attacker who successfully exploited…
CVE-2020-24683US	critical9.8	1.48% (74th)	—	2020-12-22
The affected versions of S+ Operations (version 2.1 SP1 and earlier) used an approach for user authentication which relies on validation at the client node (client-side authenticat…

+123 weitere

Referenzen (10)

Externe Belege — Patches, Meldungen, Analysen.

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