CVE-2019-8341
Published: February 15, 2019Last modified: November 9, 2023
Description
An issue was discovered in Jinja2 2.10. The from_string function is prone to Server Side Template Injection (SSTI) where it takes the "source" parameter as a template object, renders it, and then returns it. The attacker can exploit it with {{INJECTION COMMANDS}} in a URI. NOTE: The maintainer and multiple third parties believe that this vulnerability isn't valid because users shouldn't use untrusted templates without sandboxing
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 9.8 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | py3-jinja2 | Not affected (3.1.2-r1) |
| Stream | py3-jinja2 | Not affected (3.1.2-r2) |
References
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00030.html
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00064.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1677653
- https://bugzilla.suse.com/show_bug.cgi?id=1125815
- https://github.com/JameelNabbo/Jinja2-Code-execution
- https://www.exploit-db.com/exploits/46386/