High severity · published Oct 1, 2020
CVE-2020-9487
In Apache NiFi 1.0.0 to 1.11.4, the NiFi download token (one-time password) mechanism used a fixed cache size and did not authenticate a request to create a download token, only…
7.5
CVSS
3%
EPSS
No
On KEV
Description
In Apache NiFi 1.0.0 to 1.11.4, the NiFi download token (one-time password) mechanism used a fixed cache size and did not authenticate a request to create a download token, only when attempting to use the token to access the content. An unauthenticated user could repeatedly request download tokens, preventing legitimate users from requesting download tokens.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NI
Nifi · Apache
1.0.0 through 1.11.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-9487
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-9487
Vendor Advisory
https://nifi.apache.org/security#CVE-2020-9487
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