Attacker Value
Unknown
(0 users assessed)
Exploitability
Unknown
(0 users assessed)
User Interaction
Required
Privileges Required
None
Attack Vector
Network
0

CVE-2016-3739

Disclosure Date: May 20, 2016 •
CVE-2016-3739 CVSS v3 Base Score: 5.3
Add MITRE ATT&CK tactics and techniques that apply to this CVE.

Description

The (1) mbed_connect_step1 function in lib/vtls/mbedtls.c and (2) polarssl_connect_step1 function in lib/vtls/polarssl.c in cURL and libcurl before 7.49.0, when using SSLv3 or making a TLS connection to a URL that uses a numerical IP address, allow remote attackers to spoof servers via an arbitrary valid certificate.

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CVSS V3 Severity and Metrics
Base Score:
5.3 Medium
Impact Score:
3.6
Exploitability Score:
1.6
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
None
Integrity (I):
High
Availability (A):
None

General Information

Offensive Application
Unknown
Utility Class
Unknown
Ports
Unknown
OS
Unknown
Vulnerable Versions
n/a
Prerequisites
Unknown
Discovered By
Unknown
PoC Author
Unknown
Metasploit Module
Unknown
Reporter
Unknown

Vendors

  • haxx

Products

  • curl 7.21.0,
  • curl 7.21.1,
  • curl 7.21.2,
  • curl 7.21.3,
  • curl 7.21.4,
  • curl 7.21.5,
  • curl 7.21.6,
  • curl 7.21.7,
  • curl 7.22.0,
  • curl 7.23.0,
  • curl 7.23.1,
  • curl 7.24.0,
  • curl 7.25.0,
  • curl 7.26.0,
  • curl 7.27.0,
  • curl 7.28.0,
  • curl 7.28.1,
  • curl 7.29.0,
  • curl 7.30.0,
  • curl 7.31.0,
  • curl 7.32.0,
  • curl 7.33.0,
  • curl 7.34.0,
  • curl 7.35.0,
  • curl 7.36.0,
  • curl 7.38.0,
  • curl 7.39.0,
  • curl 7.40.0,
  • curl 7.41.0,
  • curl 7.42.0,
  • curl 7.42.1,
  • curl 7.43.0,
  • curl 7.44.0,
  • curl 7.45.0,
  • curl 7.46.0,
  • curl 7.47.0,
  • curl 7.48.0
Technical Analysis