Skip to content

better-macro has deliberate RCE in proc-macro #966

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
tarcieri merged 1 commit into from
Jul 26, 2021
Merged

better-macro has deliberate RCE in proc-macro #966

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
27 changes: 27 additions & 0 deletions crates/better-macro/RUSTSEC-0000-0000.md
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,27 @@
```toml
[advisory]
id = "RUSTSEC-0000-0000"
package = "better-macro"
date = "2021-07-22"
url = "https://github.com/raycar5/better-macro/blob/24ff1702397b9c19bbfa4c660e2316cd77d3b900/src/lib.rs#L36-L38"
categories = ["code-execution"]
keywords = ["rce", "proc-macro"]

[affected]
functions = { "better_macro::println" = ["> 1.0.0"] }

[versions]
patched = []
```

# `better-macro` has deliberate RCE to prove a point

[better-macro](https://crates.io/crates/better-macro) is a fake crate which is
"Proving A Point" that proc-macros can run arbitrary code. This a particularly
novel or interesting observation.

It currently opens `https://github.com/raycar5/better-macro/blob/master/doc/hi.md`
which doesn't appear to have any malicious content, but there's no guarantee that
will remain the case.

This crate has no useful functionality, and should not be used.