PT-2018-4714 · Csrf-Lite · Csrf-Lite

Twolfson · Published 2018-05-31 · Updated 2019-10-09 · CVE-2016-10535

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions csrf-lite versions prior to 0.1.2

Description The issue concerns a timing attack vulnerability due to the use of a fail-first string comparison instead of a constant-time comparison when testing CSRF tokens. This allows an attacker to guess the secret in significantly fewer attempts, specifically no more than (16*18)288 guesses, as opposed to the 16^18 guesses that would be required without the timing attack. The vulnerability removes 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.

Recommendations Update to version 0.1.2 or later.

Fix

Weakness Enumeration

CWE-208

CWE-310

Related Identifiers

CVE-2016-10535

GHSA-HJHR-R3GQ-QVP6

Affected Products

Csrf-Lite

References · 7

• https://osv.dev/vulnerability/CVE-2016-10535 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-hjhr-r3gq-qvp6 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-10535 · Security Note
• https://github.com/isaacs/csrf-lite/pull/1 · Note
• https://github.com/advisories/GHSA-hjhr-r3gq-qvp6 · Note
• https://nodesecurity.io/advisories/94 · Note
• https://npmjs.com/advisories/94 · Note