Update probe to detect use of Java's Unsafe classes

Looks for references to the classes sun.misc.Unsafe or jdk.internal.misc.Unsafe classes which can bypass the JVM's memory safety features (garbage collection, checks against out-of-bound read and write, etc.).

Signed-off-by: Thomas Leplus <thomasleplus@users.noreply.github.com>

Makefile

@@ -128,7 +128,7 @@ build-cron: build-controller build-worker build-cii-worker \
 	build-webhook build-add-script build-validate-script
 
 build-targets = generate-mocks generate-docs build-scorecard build-cron build-proto build-attestor
-.PHONY: build $(build-targets)
+.PHONY: build generate-java-parser $(build-targets)
 build: ## Build all binaries and images in the repo.
 build: $(build-targets)
 
@@ -165,6 +165,10 @@ cmd/internal/nuget/nuget_mockclient.go: cmd/internal/nuget/client.go | $(MOCKGEN
 	# Generating MockNugetClient
 	$(MOCKGEN) -source=cmd/internal/nuget/client.go -destination=cmd/internal/nuget/nuget_mockclient.go -package=nuget -copyright_file=clients/mockclients/license.txt
 
+generate-java-parser:
+	# Generating golang source code for java parser
+	cd internal/java && antlr4 -Dlanguage=Go -package java20 -o java20 Java20Lexer.g4 Java20Parser.g4
+
 PROBE_DEFINITION_FILES = $(shell find ./probes/ -name "def.yml")
 generate-docs: ## Generates docs
 generate-docs: validate-docs docs/checks.md docs/checks/internal/checks.yaml docs/checks/internal/*.go docs/checks/internal/generate/*.go \

docs/probes.md

@@ -657,7 +657,7 @@ The probe returns 1 true outcome if the project has no workflows "write" permiss
 
 **Motivation**: Memory safety in software should be considered a continuum, rather than being binary.  While some languages and tools are memory safe by default, it may still be possible, and sometimes unavoidable, to write unsafe code in them. Unsafe code allow developers to bypass normal safety checks and directly manipulate memory.
 
-**Implementation**: The probe is ecosystem-specific and will surface non memory safe practices in the project by identifying unsafe code blocks. Unsafe code blocks are supported in rust, go, c#, and swift, but only go and c# are supported by this probe at this time: - for go the probe will look for the use of the `unsafe` include directive. - for c# the probe will look at the csproj and identify the use of the `AllowUnsafeBlocks` property.
+**Implementation**: The probe is ecosystem-specific and will surface non memory safe practices in the project by identifying unsafe code blocks. Unsafe code blocks are supported in rust, go, c#, Java, and swift, but only go, c# and Java are supported by this probe at this time: - for go the probe will look for the use of the `unsafe` include directive. - for c# the probe will look at the csproj and identify the use of the `AllowUnsafeBlocks` property. - for Java the probe will look at references to either the `sun.misc.Unsafe` class or the `jdk.internal.misc.Unsafe` class.
 
 **Outcomes**: For supported ecosystem, the probe returns OutcomeTrue per unsafe block.
 If the project has no unsafe blocks, the probe returns OutcomeFalse.

go.mod

@@ -38,6 +38,7 @@ require (
 )
 
 require (
+	github.com/antlr4-go/antlr/v4 v4.13.1
 	github.com/caarlos0/env/v6 v6.10.1
 	github.com/gobwas/glob v0.2.3
 	github.com/google/go-github/v82 v82.0.0

go.sum

@@ -157,6 +157,8 @@ github.com/anchore/go-struct-converter v0.1.0 h1:2rDRssAl6mgKBSLNiVCMADgZRhoqtw9
 github.com/anchore/go-struct-converter v0.1.0/go.mod h1:rYqSE9HbjzpHTI74vwPvae4ZVYZd1lue2ta6xHPdblA=
 github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be h1:9AeTilPcZAjCFIImctFaOjnTIavg87rW78vTPkQqLI8=
 github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be/go.mod h1:ySMOLuWl6zY27l47sB3qLNK6tF2fkHG55UZxx8oIVo4=
+github.com/antlr4-go/antlr/v4 v4.13.1 h1:SqQKkuVZ+zWkMMNkjy5FZe5mr5WURWnlpmOuzYWrPrQ=
+github.com/antlr4-go/antlr/v4 v4.13.1/go.mod h1:GKmUxMtwp6ZgGwZSva4eWPC5mS6vUAmOABFgjdkM7Nw=
 github.com/apache/arrow/go/v15 v15.0.2 h1:60IliRbiyTWCWjERBCkO1W4Qun9svcYoZrSLcyOsMLE=
 github.com/apache/arrow/go/v15 v15.0.2/go.mod h1:DGXsR3ajT524njufqf95822i+KTh+yea1jass9YXgjA=
 github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=