OpenSSL Heartbeat Information Disclosure (Heartbleed)

Medium Nessus Plugin ID 73412

Synopsis

The remote service is affected by an information disclosure vulnerability.

Description

Based on its response to a TLS request with a specially crafted heartbeat message (RFC 6520), the remote service appears to be affected by an out-of-bounds read flaw.

This flaw could allow a remote attacker to read the contents of up to 64KB of server memory, potentially exposing passwords, private keys, and other sensitive data.

Solution

Upgrade to OpenSSL 1.0.1g or later.

Alternatively, recompile OpenSSL with the '-DOPENSSL_NO_HEARTBEATS' flag to disable the vulnerable functionality.

See Also

http://heartbleed.com/

http://eprint.iacr.org/2014/140

http://www.openssl.org/news/vulnerabilities.html#2014-0160

https://www.openssl.org/news/secadv/20140407.txt

Plugin Details

Severity: Medium

ID: 73412

File Name: openssl_heartbleed.nasl

Version: 2.16

Type: remote

Family: Misc.

Published: 2014/04/08

Updated: 2018/07/16

Dependencies: 56984

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2014-0160

CVSS v2.0

Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:openssl:openssl

Exploit Available: true

Exploit Ease: Exploits are available

Exploited by Nessus: true

Patch Publication Date: 2014/04/07

Vulnerability Publication Date: 2014/02/24

Exploitable With

Core Impact

Metasploit (OpenSSL Heartbeat (Heartbleed) Information Leak)

Reference Information

CVE: CVE-2014-0160

BID: 66690

CERT: 720951

EDB-ID: 32745, 32764, 32791, 32998