Auth bypass in Revive-Adserver Revive Adserver
CVE-2016-9124
Revive Adserver before 3.2.3 suffers from Improper Restriction of Excessive Authentication Attempts. The login page of Revive Adserver is vulnerable to password-guessing attacks. An account lockdown feature was considered, but rejected to avoid introducing service disruptions to regular users during such attacks. A random delay has instead been introduced as a countermeasure in case of password failures, along with a system to discourage parallel brute forcing. These systems will effectively allow the valid users to log in to the adserver, even while an attack is in progress.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Revive-Adserver Revive Adserver
- Revive Adserver All Versions Before 3.2.3 — versions Revive Adserver All versions before 3.2.3
Weakness classification (CWE)
References
- hackerone.com/reports/96115 (Permissions Required)
- www.revive-adserver.com/security/revive-sa-2016-001/ (Patch, Vendor Advisory)
- github.com/revive-adserver/revive-adserver/commit/847941390f5b3310d51b07c92ec91… (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2016-9124?
- CVE-2016-9124 is a critical-severity vulnerability in Revive-Adserver Revive Adserver, classified under Improper Restriction of Excessive Authentication Attempts. CVSS score: 9.8/10. Published 2017-03-28.
- How severe is CVE-2016-9124?
- Critical severity. CVSS v3 base score is 9.8 out of 10.