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Diffstat (limited to 't/t5550-http-fetch-dumb.sh')
| -rwxr-xr-x | t/t5550-http-fetch-dumb.sh | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/t/t5550-http-fetch-dumb.sh b/t/t5550-http-fetch-dumb.sh index ad94ed7b1c..22011f0b68 100755 --- a/t/t5550-http-fetch-dumb.sh +++ b/t/t5550-http-fetch-dumb.sh @@ -322,5 +322,43 @@ test_expect_success 'http.followRedirects defaults to "initial"' ' test_must_fail git clone $HTTPD_URL/redir-objects/repo.git default ' +# The goal is for a clone of the "evil" repository, which has no objects +# itself, to cause the client to fetch objects from the "victim" repository. +test_expect_success 'set up evil alternates scheme' ' + victim=$HTTPD_DOCUMENT_ROOT_PATH/victim.git && + git init --bare "$victim" && + git -C "$victim" --work-tree=. commit --allow-empty -m secret && + git -C "$victim" repack -ad && + git -C "$victim" update-server-info && + sha1=$(git -C "$victim" rev-parse HEAD) && + + evil=$HTTPD_DOCUMENT_ROOT_PATH/evil.git && + git init --bare "$evil" && + # do this by hand to avoid object existence check + printf "%s\\t%s\\n" $sha1 refs/heads/master >"$evil/info/refs" +' + +# Here we'll just redirect via HTTP. In a real-world attack these would be on +# different servers, but we should reject it either way. +test_expect_success 'http-alternates is a non-initial redirect' ' + echo "$HTTPD_URL/dumb/victim.git/objects" \ + >"$evil/objects/info/http-alternates" && + test_must_fail git -c http.followRedirects=initial \ + clone $HTTPD_URL/dumb/evil.git evil-initial && + git -c http.followRedirects=true \ + clone $HTTPD_URL/dumb/evil.git evil-initial +' + +# Curl supports a lot of protocols that we'd prefer not to allow +# http-alternates to use, but it's hard to test whether curl has +# accessed, say, the SMTP protocol, because we are not running an SMTP server. +# But we can check that it does not allow access to file://, which would +# otherwise allow this clone to complete. +test_expect_success 'http-alternates cannot point at funny protocols' ' + echo "file://$victim/objects" >"$evil/objects/info/http-alternates" && + test_must_fail git -c http.followRedirects=true \ + clone "$HTTPD_URL/dumb/evil.git" evil-file +' + stop_httpd test_done |