mirror of
https://github.com/vulncheck-oss/cve-2023-22527
synced 2026-06-08 18:05:07 +00:00
Jacob Baines
30 lines
1.4 KiB
Markdown
30 lines
1.4 KiB
Markdown
# Executing Arbitrary Code In Confluence Memory
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[CVE-2023-22527](https://nvd.nist.gov/vuln/detail/CVE-2023-22527) is a widely known vulnerability affecting Atlassian Confluence. Most exploits for this vulnerability use `freemarker.template.utility.Execute()` to execute an operating system command, but they can do so much better. In this repository you'll find three [go-exploit](https://github.com/vulncheck-oss/go-exploit) implementations of CVE-2023-22527 that execute their payload without touching disk (at least until the user directs them to).
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You will find the exploits in the following subdirectories
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* webshell: loads a webshell into memory
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* reverseshell: loads a reverse shell into memory
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* nashorn: loads a Nashorn JavaScript reverse shell into memory (only affects Atlassian Confluence using Java below version 15)
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## Compiling
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All the repositories come with a dockerfile. To build it simply:
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```
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make docker
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```
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If you have a Go (and Java) build environment handy, you can also just use `make`:
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```
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albinolobster@mournland:~/cve-2023-22527/webshell$ make
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gofmt -d -w cve-2023-22527.go
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golangci-lint run --fix cve-2023-22527.go
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javac ABCDEFG.java -classpath ./lib/servlet-api.jar
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Note: ABCDEFG.java uses or overrides a deprecated API.
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Note: Recompile with -Xlint:deprecation for details.
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GOOS=linux GOARCH=arm64 go build -o build/cve-2023-22527_linux-arm64 cve-2023-22527.go
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```
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