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prevent drive traversal in windows

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This commit is contained in:
Rob Ede 2022-01-25 16:44:05 +00:00
parent 5454699bab
commit 1bd2076b35
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GPG key ID: 97C636207D3EF933
1 changed files with 29 additions and 1 deletions
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30
actix-files/src/path_buf.rs
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@ -59,6 +59,8 @@ impl PathBufWrap {
continue;
} else if cfg!(windows) && segment.contains('\\') {
return Err(UriSegmentError::BadChar('\\'));
} else if cfg!(windows) && segment.contains(':') {
return Err(UriSegmentError::BadChar(':'));
} else {
buf.push(segment)
}
@ -66,7 +68,11 @@ impl PathBufWrap {
// make sure we agree with stdlib parser
for (i, component) in buf.components().enumerate() {
assert!(matches!(component, Component::Normal(_)));
assert!(
matches!(component, Component::Normal(_)),
"component `{:?}` is not normal",
component
);
assert!(i < segment_count);
}
@ -159,4 +165,26 @@ mod tests {
PathBuf::from_iter(vec!["etc/passwd"])
);
}
#[test]
#[cfg_attr(windows, should_panic)]
fn windows_drive_traversal() {
// detect issues in windows that could lead to path traversal
// see <https://github.com/SergioBenitez/Rocket/issues/1949
assert_eq!(
PathBufWrap::parse_path("C:test.txt", false).unwrap().0,
PathBuf::from_iter(vec!["C:test.txt"])
);
assert_eq!(
PathBufWrap::parse_path("C:../whatever", false).unwrap().0,
PathBuf::from_iter(vec!["C:../whatever"])
);
assert_eq!(
PathBufWrap::parse_path(":test.txt", false).unwrap().0,
PathBuf::from_iter(vec![":test.txt"])
);
}
}