CVE-2020-13777
GnuTLS Session Ticket Vulnerability
Description
GnuTLS 3.6.x before 3.6.14 uses incorrect cryptography for encrypting a session ticket (a loss of confidentiality in TLS 1.2, and an authentication bypass in TLS 1.3). The earliest affected version is 3.6.4 (2018-09-24) because of an error in a 2018-09-18 commit. Until the first key rotation, the TLS server always uses wrong data in place of an encryption key derived from an application.
INFO
Published Date :
June 4, 2020, 7:15 a.m.
Last Modified :
Nov. 21, 2024, 5:01 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
2.2
Public PoC/Exploit Available at Github
CVE-2020-13777 has a 15 public PoC/Exploit
available at Github.
Go to the Public Exploits
tab to see the list.
Affected Products
The following products are affected by CVE-2020-13777
vulnerability.
Even if cvefeed.io
is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-13777
.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Some of my personal automation shell scripts.
Shell
None
Dockerfile Shell CSS HTML PHP Python JavaScript Vim Script Zeek PureBasic
None
A collection of zeek detection scripts
A set of PCAPs used to test the parsers used by Malcolm. Also, a curated list of PCAP collections I've found online.
pcap pcap-files pcaps
Python
None
2020年发布到阿尔法实验室微信公众号的所有安全资讯汇总
None
None
A command line tool which provides an alternative interface to snyk test
snyk
Makefile Dockerfile Crystal Open Policy Agent
A simple to use TLS server library for Linux
Makefile C
CSI SIEM
Dockerfile Shell CSS HTML PHP Python JavaScript Vim Script Zeek PureBasic
None
Python
Challange CVE-2020-13777
Zeek script to detect servers vulnerable to CVE-2020-13777
Zeek Makefile Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-13777
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-13777
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00015.html Added Reference https://gnutls.org/security-new.html#GNUTLS-SA-2020-06-03 Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6C4DHUKV6M6SJ5CV6KVHZNHNF7HCUE5P/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6RTXZOXC4MHTFE2HKY6IAZMF2WHD2WMV/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRQBFK3UZ7SV76IYDTS4PS6ABS2DSJHK/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMB3UGI5H5RCFRU6OGRPMNUCNLJGEN7Y/ Added Reference https://security.gentoo.org/glsa/202006-01 Added Reference https://security.netapp.com/advisory/ntap-20200619-0004/ Added Reference https://usn.ubuntu.com/4384-1/ Added Reference https://www.debian.org/security/2020/dsa-4697 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VMB3UGI5H5RCFRU6OGRPMNUCNLJGEN7Y/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6C4DHUKV6M6SJ5CV6KVHZNHNF7HCUE5P/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RRQBFK3UZ7SV76IYDTS4PS6ABS2DSJHK/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6RTXZOXC4MHTFE2HKY6IAZMF2WHD2WMV/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/VMB3UGI5H5RCFRU6OGRPMNUCNLJGEN7Y/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/6RTXZOXC4MHTFE2HKY6IAZMF2WHD2WMV/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/6C4DHUKV6M6SJ5CV6KVHZNHNF7HCUE5P/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/RRQBFK3UZ7SV76IYDTS4PS6ABS2DSJHK/ -
Modified Analysis by [email protected]
Mar. 01, 2023
Action Type Old Value New Value Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00015.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00015.html Broken Link Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/6C4DHUKV6M6SJ5CV6KVHZNHNF7HCUE5P/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/6C4DHUKV6M6SJ5CV6KVHZNHNF7HCUE5P/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/6RTXZOXC4MHTFE2HKY6IAZMF2WHD2WMV/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/6RTXZOXC4MHTFE2HKY6IAZMF2WHD2WMV/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/RRQBFK3UZ7SV76IYDTS4PS6ABS2DSJHK/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/RRQBFK3UZ7SV76IYDTS4PS6ABS2DSJHK/ Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20200619-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20200619-0004/ Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CPE Deprecation Remap by [email protected]
Aug. 18, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:* OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jun. 19, 2020
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20200619-0004/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 14, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/6RTXZOXC4MHTFE2HKY6IAZMF2WHD2WMV/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/6C4DHUKV6M6SJ5CV6KVHZNHNF7HCUE5P/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RRQBFK3UZ7SV76IYDTS4PS6ABS2DSJHK/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00015.html [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://gnutls.org/security-new.html#GNUTLS-SA-2020-06-03 No Types Assigned https://gnutls.org/security-new.html#GNUTLS-SA-2020-06-03 Vendor Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/VMB3UGI5H5RCFRU6OGRPMNUCNLJGEN7Y/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/VMB3UGI5H5RCFRU6OGRPMNUCNLJGEN7Y/ Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202006-01 No Types Assigned https://security.gentoo.org/glsa/202006-01 Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4384-1/ No Types Assigned https://usn.ubuntu.com/4384-1/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2020/dsa-4697 No Types Assigned https://www.debian.org/security/2020/dsa-4697 Third Party Advisory Added CWE NIST CWE-327 Added CPE Configuration OR *cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:* versions from (including) 3.6.0 up to (excluding) 3.6.14 Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* *cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4384-1/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 09, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202006-01 [No Types Assigned] -
CVE Modified by [email protected]
Jun. 07, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/VMB3UGI5H5RCFRU6OGRPMNUCNLJGEN7Y/ [No Types Assigned] -
CVE Modified by [email protected]
Jun. 07, 2020
Action Type Old Value New Value Added Reference https://www.debian.org/security/2020/dsa-4697 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-13777
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-13777
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.32 }} -0.02%
score
0.70373
percentile