Executive Summary

Informations
Name CVE-2020-12695 First vendor Publication 2020-06-08
Vendor Cve Last vendor Modification 2020-09-16

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 4.7 Temporal Score 7.5
Exploitabality Sub Score 2.2
 
Attack Vector Network Attack Complexity High
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact Low
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 7.8 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

The Open Connectivity Foundation UPnP specification before 2020-04-17 does not forbid the acceptance of a subscription request with a delivery URL on a different network segment than the fully qualified event-subscription URL, aka the CallStranger issue.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12695

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-276 Incorrect Default Permissions

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Application 60
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 2
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Hardware 1
Os 1
Os 1

Snort® IPS/IDS

Date Description
2020-07-14 CallStranger UPnP discovery attempt
RuleID : 54281 - Revision : 1 - Type : INDICATOR-SCAN
2020-07-14 UPnP SUBSCRIBE Callback denial-of-service attempt
RuleID : 54280 - Revision : 1 - Type : INDICATOR-COMPROMISE
2020-07-14 UPnP SUBSCRIBE Callback denial-of-service attempt
RuleID : 54279 - Revision : 1 - Type : INDICATOR-COMPROMISE

Sources (Detail)

Source Url
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
MISC http://packetstormsecurity.com/files/158051/CallStranger-UPnP-Vulnerability-C...
https://corelight.blog/2020/06/10/detecting-the-new-callstranger-upnp-vulnera...
https://github.com/corelight/callstranger-detector
https://github.com/yunuscadirci/CallStranger
https://www.callstranger.com
https://www.kb.cert.org/vuls/id/339275
https://www.tenable.com/blog/cve-2020-12695-callstranger-vulnerability-in-uni...
MLIST http://www.openwall.com/lists/oss-security/2020/06/08/2
https://lists.debian.org/debian-lts-announce/2020/08/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00013.html
UBUNTU https://usn.ubuntu.com/4494-1/

Alert History

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Date Informations
2020-09-17 00:22:50
  • Multiple Updates
2020-08-09 05:22:51
  • Multiple Updates
2020-08-07 05:22:55
  • Multiple Updates
2020-07-14 21:22:58
  • Multiple Updates
2020-07-09 09:22:42
  • Multiple Updates
2020-07-04 09:22:41
  • Multiple Updates
2020-07-03 09:22:41
  • Multiple Updates
2020-06-25 00:22:38
  • Multiple Updates
2020-06-23 21:23:02
  • Multiple Updates
2020-06-18 09:22:46
  • Multiple Updates
2020-06-12 00:22:44
  • Multiple Updates
2020-06-09 09:22:50
  • Multiple Updates
2020-06-09 00:22:47
  • Multiple Updates
2020-06-08 21:23:10
  • First insertion