QID 981607

QID 981607: Nodejs (npm) Security Update for cookie-signature (GHSA-92vm-wfm5-mxvv)

Affected versions of `cookie-signature` are vulnerable to timing attacks as a result of using a fail-early comparison instead of a constant-time comparison.

Timing attacks remove the exponential increase in entropy gained from increased secret length, by providing per-character feedback on the correctness of a guess via miniscule timing differences.

Under favorable network conditions, an attacker can exploit this to guess the secret in no more than `charset*length` guesses, instead of `charset^length` guesses required were the timing attack not present.

## Recommendation

Update to 1.0.6 or later.

Successful exploitation of this vulnerability may affect the confidentiality, integrity, and availability of the targeted user.

CVSS V3 rated as Medium - 4.4 severity.

CVSS V2 rated as Medium - 3.5 severity.

Solution

Customers are advised to refer to GHSA-92vm-wfm5-mxvv for updates pertaining to this vulnerability.

Vendor References

GHSA-92vm-wfm5-mxvv - github.com/advisories/GHSA-92vm-wfm5-mxvv

CVEs related to QID 981607

CVE-2016-1000236 |

Software Advisories

Advisory ID	Software	Component	Link
GHSA-92vm-wfm5-mxvv	cookie-signature		github.com/advisories/GHSA-92vm-wfm5-mxvv

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