X (Formerly Twitter): POODLE SSLv3 bug on multiple twitter smtp servers (mx3.twitter.com,199.59.148.204,199.16.156.108 and 199.59.148.204)

2017-11-0921:44:16

omespino

hackerone.com

3.4 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

0.975 High

EPSS

Percentile

100.0%

JSON

Summary: POODLE SSLv3 bug on multiple twitter smtp servers

Description: CVE-2014-3566: The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, aka the “POODLE” issue.

Steps To Reproduce:

Hi Twitter Sec team here is the POC

get a nmap installation and twitter_smtp_ssl_servers.txt file (attached)
run this command :
“nmap -sV --version-light -Pn --script ssl-poodle -p 25 -iL twitter_smtp_ssl_servers.txt | grep -B 5 VULNERABLE”
See the results