Java: Introduce Freemarker for SSTI queries#6320
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japroc wants to merge 3 commits intogithub:mainfrom
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FYI: There is a similar PR #5935 |
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In the event they differ enough: @japroc are you applying to the bounty program for this? |
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Hi @intrigus-lgtm and @smowton, Unfortunately, i have not seen that PR (#5935) earlier. It looks similar. I think mine
Yes, i wanted to apply for bounty after some discussion |
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Hi team!
I want to add support for Freemarker template engine.
There is a Freemarker.qll library and 2 queries.
Query 1 - FreemarkerTaintedTemplate.ql
Search for cases when untrusted data is used as template. It may lead to remote code execution and information disclosure vulnerabilities.
Query 2 - FreemarkerUnsafeConfiguration.ql
Search for unsafe freemarker configurations. It is not critical by default. Although, when developers use builtin interpret filter on user-data, they will be executed as part of template. As i know it's impossible to analyze ftl files. As mitigation it's recommended to configure secure engine by 1) not enabling Builtin API, 2) setting class resolver to
ALLOWS_NOTHING_RESOLVER.Thanks,
Evgenii.