GitHub Advisoryadvisory · npm
GHSA-92vm-wfm5-mxvv cookie-signature Timing Attack
MEDIUM
Official page ↗
- Aliases
- CVE-2016-1000236
- Ecosystem
- npm
- Packages
- cookie-signature
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-362
- Reviewed
- 2019-12-27
Affected packages
• npm cookie-signature: < 1.0.4 → fixed in 1.0.4
Description
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 1.0.4 or later.
Related
Alias · CVE (1)
- CVE-2016-1000236 Node-cookie-signature before 1.0.6 is affected by a timing attack due to the type of comparison used. vulnerability
Weakness · CWE (1)
- CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2016-1000236 advisory
- https://github.com/tj/node-cookie-signature/commit/2c4df6b6cee540f30876198cd0b5bebf28528c07 web
- https://github.com/tj/node-cookie-signature/commit/39791081692e9e14aa62855369e1c7f80fbfd50e web
- https://github.com/tj/node-cookie-signature/commit/4cc5e21e7f59a4ea0b51cd5e9634772d48fab590 web
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=838618 web
- https://bugzilla.redhat.com/show_bug.cgi?id=1371409 web
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-1000236 web
- https://github.com/tj/node-cookie-signature package
- https://security-tracker.debian.org/tracker/CVE-2016-1000236 web
- https://travis-ci.com/nodejs/security-wg/builds/76423102 web
- https://www.mail-archive.com/[email protected]/msg06583.html web
- https://www.npmjs.com/advisories/134 web