High severity · published Dec 26, 2019
CVE-2019-19999
Halo before 1.2.0-beta.1 allows Server Side Template Injection (SSTI) because TemplateClassResolver.SAFER_RESOLVER is not used in the FreeMarker configuration
7.2
CVSS
1.5%
EPSS
No
On KEV
Description
Halo before 1.2.0-beta.1 allows Server Side Template Injection (SSTI) because TemplateClassResolver.SAFER_RESOLVER is not used in the FreeMarker configuration.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 74% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
Halo · Halo
through 1.1.1; 1.1.3; 1.1.3; 1.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19999
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-19999
Patch
https://github.com/halo-dev/halo/compare/v1.1.3-beta.2...v1.2.0-beta.1
Exploit
https://github.com/halo-dev/halo/issues/419
Exploit
https://github.com/halo-dev/halo/issues/440
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