Which products and versions are affected by CVE-2021-33256?

Affected: Manageengine Adselfservice Plus (Zohocorp) versions 6.1-6101. The full list is in the CVE brief.

Is CVE-2021-33256 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2021-33256 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2021-33256?

No public exploit code is known.

Is there a fix for CVE-2021-33256?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2021-33256 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2021-33256

High

A CSV injection vulnerability on the login panel of ManageEngine ADSelfService Plus Version: 6.1 Build No: 6101 can be exploited by an unauthenticated user.

Published Aug 9, 2021 · Updated Nov 21, 2024

Key Facts

Patch immediately

CVE-2021-33256 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Manageengine Adselfservice Plus (Zohocorp).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 79% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

8.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

79%

Higher than 99.5% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2021-33256 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

A CSV injection vulnerability on the login panel of ManageEngine ADSelfService Plus Version: 6.1 Build No: 6101 can be exploited by an unauthenticated user. The j_username parameter seems to be vulnerable and a reverse shell could be obtained if a privileged user exports "User Attempts Audit Report" as CSV file. Note: The vendor disputes this vulnerability, claiming "This is not a valid vulnerability in our ADSSP product. We don't see this as a security issue at our side.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Manageengine Adselfservice PlusZohocorp	6.1-6101	n/a

Timeline

Publicly disclosed
Aug 9, 2021
Last updated
Nov 21, 2024

Weakness Type

CWE-1236 Improper Neutralization of Formula Elements in a CSV File

References

exploithttps://docs.unsafe-inline.com/0day/manageengine-adselfservice-plus-6.1-csv-injection

FAQ

Common Questions.

A CSV injection vulnerability on the login panel of ManageEngine ADSelfService Plus Version: 6.1 Build No: 6101 can be exploited by an unauthenticated user.
Affected: Manageengine Adselfservice Plus (Zohocorp) versions 6.1-6101. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2021-33256 Running On Your Attack Surface?

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