Code injection

2021-09-2920:15:00

PRIOn knowledge base

www.prio-n.com

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

41.8%

JSON

When curl >= 7.20.0 and <= 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instead continue using and trustingthe responses it got before the TLS handshake as if they were authenticated.Using this flaw, it allows a Man-In-The-Middle attacker to first inject the fake responses, then pass-through the TLS traffic from the legitimate server and trick curl into sending data back to the user thinking the attacker’s injected data comes from the TLS-protected server.

CPENameOperatorVersion
macoslt12.3
debian_linuxeq9.0
debian_linuxeq10.0
debian_linuxeq11.0
fedoraeq33
fedoraeq35
curlge7.20.0
curllt7.79.0
commerce_guided_searcheq11.3.2
communications_cloud_native_core_binding_support_functioneq1.11.0

Name	Operator	Version
macos	lt	12.3
debian_linux	eq	9.0
debian_linux	eq	10.0
debian_linux	eq	11.0
fedora	eq	33
fedora	eq	35
curl	ge	7.20.0
curl	lt	7.79.0
commerce_guided_search	eq	11.3.2
communications_cloud_native_core_binding_support_function	eq	1.11.0