Medium severity · published Oct 10, 2017
CVE-2017-12623
An authorized user could upload a template which contained malicious code and accessed sensitive files via an XML External Entity (XXE) attack
6.5
CVSS
1.9%
EPSS
No
On KEV
Description
An authorized user could upload a template which contained malicious code and accessed sensitive files via an XML External Entity (XXE) attack. The fix to properly handle XML External Entities was applied on the Apache NiFi 1.4.0 release. Users running a prior 1.x release should upgrade to the appropriate release.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% 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; 1.0.1; 1.1.0; 1.1.1; 1.1.2; 1.2.0; +1 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12623
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-12623
Vendor Advisory
https://nifi.apache.org/security.html#CVE-2017-12623
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