Composer arbitrary command execution via a malicious package's Perforce source URL

Summary If the p4 Perforce CLI client is installed, a malicious dependency package from a package repository allowing arbitrary perforce source URLs packagist.org is safe could execute arbitrary commands when running composer install or composer update. Composer passed a package's Perforce source...

composer: Composer: Arbitrary code execution via malicious Perforce source URL

A flaw was found in Composer. A malicious dependency package from a custom Composer repository or an untrusted composer.lock file could exploit a vulnerability in how Composer handles Perforce source URLs. By setting source.type to perforce and source.url to an rsh: or jsh: P4PORT value, an...