| Título | spatie Scotty 1.4.2 Missing Integrity Check |
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| Descrição | Scotty (spatie/scotty) version 1.4.2 downloads and installs self-updates without verifying the integrity or authenticity of the downloaded phar. `SelfUpdater::update()` fetches the new binary from a GitHub release URL via `SelfUpdater::defaultDownloader()` (which follows redirects without validating the final target domain), and after only a non-empty and minimum-size check (`MIN_PHAR_SIZE_BYTES = 100000`), writes it to `{pharPath}.new`, chmods it 0755, and renames it over the running phar with no signature or checksum verification. An attacker able to perform a man-in-the-middle attack on the HTTPS download path (abuse of a trusted CA, malicious proxy, or DNS hijacking with a valid certificate) or to poison the GitHub release asset can substitute a malicious phar, which then executes with the victim's privileges the next time Scotty is run, leading to code execution / supply-chain compromise.
Reproduction: https://github.com/sumo166/CVE-apply/blob/main/spatie/scotty/Self-Update%20Downloads%20Phar%20Without%20Integrity%20Check%20(CWE-494)_cve.md |
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| Fonte | ⚠️ https://github.com/spatie/scotty/issues/21 |
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| Utilizador | summmm (UID 69690) |
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| Submissão | 23/08/2026 07h48 (há 26 dias) |
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| Moderação | 18/09/2026 10h54 (26 days later) |
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| Estado | Aceite |
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| Entrada VulDB | 407451 [spatie Scotty até 1.4.2 Self Update SelfUpdater.php SelfUpdater::update Divulgação de Informação] |
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| Pontos | 20 |
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