Auth bypass in Yellowfinbi Yellowfin
CVE-2021-36389
In Yellowfin before 9.6.1 it is possible to enumerate and download uploaded images through an Insecure Direct Object Reference vulnerability exploitable by sending a specially crafted HTTP GET request to the page "MIImage.i4".
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.031 (87.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.031 · newest: 0.031 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- packetstormsecurity.com/files/164515/Yellowfin-Cross-Site-Scripting-Insecure-Di… (VDB Entry, Third Party Advisory)
- wiki.yellowfinbi.com/display/yfcurrent/Release+Notes+for+Yellowfin+9 (Release Notes, Vendor Advisory)
- github.com/cyberaz0r/Yellowfin-Multiple-Vulnerabilities/blob/main/README.md (Third Party Advisory)
- seclists.org/fulldisclosure/2021/Oct/15 (mailing-list, Third Party Advisory)
- cyberaz0r.info/2021/10/yellowfin-multiple-vulnerabilities/
Frequently asked questions
- What is CVE-2021-36389?
- CVE-2021-36389 is a high-severity vulnerability in Yellowfinbi Yellowfin, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2021-10-14.
- How severe is CVE-2021-36389?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-36389 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.