Vulnerability in Zohocorp Manageengine Adselfservice Plus
CVE-2021-33256
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.790 (99.6th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.790 · newest: 0.790 · change: 0.000
Affected products
- Zohocorp Manageengine Adselfservice Plus — versions 6.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- docs.unsafe-inline.com/0day/manageengine-adselfservice-plus-6.1-csv-injection (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-33256?
- CVE-2021-33256 is a high-severity vulnerability in Zohocorp Manageengine Adselfservice Plus, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 8.8/10. Published 2021-08-09.
- How severe is CVE-2021-33256?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-33256 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.