Vulnerability Name:

CVE-2015-6409 (CCN-109309)

Assigned:2015-12-24
Published:2015-12-24
Updated:2016-12-07
Summary:Cisco Jabber 10.6.x, 11.0.x, and 11.1.x on Windows allows man-in-the-middle attackers to conduct STARTTLS downgrade attacks and trigger cleartext XMPP sessions via unspecified vectors, aka Bug ID CSCuw87419.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-200
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2015-6409

Source: CCN
Type: Cisco Security Advisory cisco-sa-20151224-jab
Cisco Jabber for Windows STARTTLS Downgrade Vulnerability

Source: CISCO
Type: Vendor Advisory
20151224 Cisco Jabber for Windows STARTTLS Downgrade Vulnerability

Source: BID
Type: UNKNOWN
79678

Source: CCN
Type: BID-79678
Cisco Jabber for Windows CVE-2015-6409 Man in the Middle Security Bypass Vulnerability

Source: SECTRACK
Type: UNKNOWN
1034540

Source: MISC
Type: Third Party Advisory
http://www.synacktiv.com/ressources/cisco_jabber_starttls_downgrade.pdf

Source: XF
Type: UNKNOWN
cisco-jabber-cve20156409-info-disc(109309)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:jabber:10.6(2):*:*:*:*:windows:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:jabber:10.6(2)::~~~windows~~:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco jabber 10.6(2)
    cisco jabber 10.6(2)