CVE-2018-9845: Etherpad Lite before 1.6.4 is exploitable for admin access.

PriorityP266critical9.8CVSS 3.0

AVNACLPRNUINSUCHIHAH

EXPLOIT

EPSS

13.13%

95.9th percentile

Etherpad Lite before 1.6.4 is exploitable for admin access.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
etherpad	etherpad_lite	< 1.6.4	1.6.4

Detection & IOCsextracted from sources · hover to see the quote

url/Admin

→HTTP GET request to /Admin path returns HTTP 200 with Etherpad admin panel body keywords, indicating successful authentication bypass
→Response body contains all three strings: 'Etherpad version', 'Plugin manager', and 'Installed parts' simultaneously, confirming admin panel access without authentication
→HTTP status code 200 on /Admin endpoint (with redirect following up to 2 hops) confirms the bypass is successful

·The bypass relies on case-sensitive path handling — the path '/Admin' (capital A) is used rather than '/admin', reflecting CWE-178 (case-insensitive comparison) as the root cause ↗
·Only Etherpad Lite versions before 1.6.4 are vulnerable; the fix was introduced in commit ffe24c3dd93efc73e0cbf924db9a0cc40be9511b ↗

CVSS provenance

nvdv3.09.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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