4.3

CVE-2021-22890

Exploit
curl 7.63.0 to and including 7.75.0 includes vulnerability that allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS 1.3 session tickets. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arrived from the remote server and then wrongly "short-cut" the host handshake. When confusing the tickets, a HTTPS proxy can trick libcurl to use the wrong session ticket resume for the host and thereby circumvent the server TLS certificate check and make a MITM attack to be possible to perform unnoticed. Note that such a malicious HTTPS proxy needs to provide a certificate that curl will accept for the MITMed server for an attack to work - unless curl has been told to ignore the server certificate check.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Haxx ≫ Libcurl Version >= 7.63.0 <= 7.75.0
Fedoraproject ≫ Fedora Version32
Fedoraproject ≫ Fedora Version33
Fedoraproject ≫ Fedora Version34
Netapp ≫ Solidfire Version-
Netapp ≫ Hci Storage Node Version-
Debian ≫ Debian Linux Version9.0
Oracle ≫ Essbase Version21.2
Splunk ≫ Universal Forwarder Version >= 8.2.0 < 8.2.12
Splunk ≫ Universal Forwarder Version >= 9.0.0 < 9.0.6
Splunk ≫ Universal Forwarder Version9.1.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 3.14% 0.862
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 3.7 2.2 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
nvd@nist.gov 4.3 8.6 2.9
AV:N/AC:M/Au:N/C:N/I:P/A:N
134c704f-9b21-4f2e-91b3-4a467353bcc0 4.3 2.8 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
CWE-290 Authentication Bypass by Spoofing

This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.

CWE-300 Channel Accessible by Non-Endpoint

The product does not adequately verify the identity of actors at both ends of a communication channel, or does not adequately ensure the integrity of the channel, in a way that allows the channel to be accessed or influenced by an actor that is not an endpoint.

https://www.oracle.com//security-alerts/cpujul2021.html
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
Patch
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2ZC5BMIOKLBQJSFCHEDN2G2C2SH274BP/
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITVWPVGLFISU5BJC2BXBRYSDXTXE2YGC/
Third Party Advisory
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KQUIOYX2KUU6FIUZVB5WWZ6JHSSYSQWJ/
Third Party Advisory
Mailing List
https://security.gentoo.org/glsa/202105-36
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210521-0007/
Third Party Advisory
https://curl.se/docs/CVE-2021-22890.html
Patch
Vendor Advisory
https://hackerone.com/reports/1129529
Patch
Third Party Advisory
Exploit
Issue Tracking