Skip to content
Fencer Intel
low —

GHSA-6wjw-qf87-fv5v json

Laravel Encrypter Failure to decryption vulnerability

published 2y ago modified last yr.

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no score, EPSS covers CVEs only
public exploits
0
none known

Summary

A potential exploit of the Laravel Encrypter component that may cause the Encrypter to fail on decryption and unexpectedly return false.

To exploit this, the attacker must be able to modify the encrypted payload before it is decrypted. Depending on the code within your application, this could lead to unexpected behavior when combined with weak type comparisons, for example:

```php <?php

$decyptedValue = decrypt($secret);

if ($decryptedValue == '') { // Code is run even though decrypted value is false... } ```

Patch / fix

  • packagist illuminate/encryption 5.5.40, 5.6.15

Is GHSA-6wjw-qf87-fv5v in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Affected packages

ecosystem package affected fixed in
packagist illuminate/encryption
>=5.5.0, <5.5.40
>=5.6.0, <5.6.15
5.5.40
5.6.15

Classification

Weakness
  • CWE-1240 Use of a Cryptographic Primitive with a Risky Implementation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.