CVE-2021-33256 Code injection in n/a
Unauthenticated attackers can inject malicious formulas into login parameters, leading to code execution when administrators export audit reports.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-33256?
CVE-2021-33256 is a high-severity code injection vulnerability in Zohocorp Manageengine Adselfservice Plus, published on 9 Aug 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-1236
Which versions are affected by CVE-2021-33256?
It affects 1 product.
Products include Zohocorp Manageengine Adselfservice Plus.
How do I fix CVE-2021-33256?
No fix has been published for CVE-2021-33256 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-33256 being exploited?
There is no known exploitation of CVE-2021-33256 in the wild and no public exploit code.
Other vulnerabilities in Zohocorp Manageengine Adselfservice Plus
- CVE-2021-40539 Zoho ManageEngine ADSelfService Plus Authentication Bypass
- CVE-2022-28810 Zoho ManageEngine ADSelfService Plus Remote Code Execution
- CVE-2019-3905 Server-side request forgery in n/a
- CVE-2023-35854 Auth bypass in n/a
- CVE-2021-37422 SQL injection in n/a
All Zohocorp Manageengine Adselfservice Plus vulnerabilities
Sources
Also known as GHSA-x963-3p8c-j4m6.