← לוח פגיעויות

CVE-2021-22890

נמוכה 3.7

תיאור (מקור, אנגלית)

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.

מדדים

CVSS 3.1
3.7 (LOW) מקור הציון: NVD CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS — סבירות ניצול
3% (אחוזון 100) נכון ל-14/10/2026
CWE
CWE-300, CWE-290

מוצרים מושפעים

haxx: libcurl; fedoraproject: fedora; netapp: hci management node; netapp: solidfire; netapp: hci storage node; broadcom: fabric operating system; debian: debian linux; siemens: sinec infrastructure network services; oracle: communications billing and revenue management; oracle: essbase; splunk: universal forwarder

קישורים