Auth bypass in D-Link Dir-885l\/r Firmware
CVE-2018-12103
An issue was discovered on D-Link DIR-890L with firmware 1.21B02beta01 and earlier, DIR-885L/R with firmware 1.21B03beta01 and earlier, and DIR-895L/R with firmware 1.21B04beta04 and earlier devices (all hardware revisions). Due to the predictability of the /docs/captcha_(number).jpeg URI, being local to the network, but unauthenticated to the administrator's panel, an attacker can disclose the CAPTCHAs used by the access point and can elect to load the CAPTCHA of their choosing, leading to unauthorized login attempts to the access point.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.005 (36.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- securityadvisories.dlink.com/announcement/publication.aspx (Vendor Advisory)
- seclists.org/fulldisclosure/2018/Jul/13 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-12103?
- CVE-2018-12103 is a medium-severity vulnerability in D-Link Dir-885l\/r Firmware, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2018-07-05.
- How severe is CVE-2018-12103?
- Medium severity. CVSS v3 base score is 6.5 out of 10.