CVE-2021-22876

curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header...

Design/Logic Flaw

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...

Cross site request forgery (csrf)

curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header...

CVE-2021-22890

CVE-2021-22890 affects curl 7.63.0 through 7.75.0. When using TLS 1.3 with an HTTPS proxy, libcurl could confuse TLS session tickets from the proxy as if they came from the remote server, potentially causing the host’s session ticket to be resumed incorrectly and bypass server certificate checks,...

CVE-2021-22876

The Connected documents confirm CVE-2021-22876 affects curl/libcurl 7.1.1 through 7.75.0, where libcurl fails to remove user credentials from URLs when populating the Referer header, leading to leakage of credentials to the server of the second request. The root cause is improper handling of cred...

CVE-2021-22876

curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header...

CVE-2021-22876

curl 7.1.1 to and including 7.75.0 is vulnerable to an "Exposure of Private Personal Information to an Unauthorized Actor" by leaking credentials in the HTTP Referer: header. libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header...

Man-in-the-Middle (MITM) Attack

curl:buster is vulnerable to man-in-the-middle attack. It allows a malicious HTTPS proxy to MITM a connection due to bad handling of TLS. 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...

CVE-2021-22890

A flaw was found in the way libcurl handled TLS 1.3 session tickets. A malicious HTTPS proxy could possibly use this flaw to make libcurl resume a TLS session it previously had with the proxy while intending to resume a TLS session with a target server, making it possible for the proxy to perform...

CVE-2021-22876

It was discovered that libcurl did not remove authentication credentials from URLs when automatically populating the Referer HTTP request header while handling HTTP redirects. This could lead to exposure of the credentials to the server to which requests were redirected. Mitigation This issue can...

TLS 1.3 session ticket proxy host mix-up

Enabled by default, libcurl supports the use of TLS 1.3 session tickets to resume previous TLS sessions to speed up subsequent TLS handshakes. When using an 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 serve...

CURL-CVE-2021-22890 TLS 1.3 session ticket proxy host mix-up

Enabled by default, libcurl supports the use of TLS 1.3 session tickets to resume previous TLS sessions to speed up subsequent TLS handshakes. When using an 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 serve...

Automatic referer leaks credentials

libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request. libcurl automatically sets the Referer:...

CURL-CVE-2021-22876 Automatic referer leaks credentials

libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request. libcurl automatically sets the Referer:...

CVE-2021-22890

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...

curl -- Automatic referer leaks credentials

Daniel Stenberg reports: libcurl does not strip off user credentials from the URL when automatically populating the Referer: HTTP request header field in outgoing HTTP requests, and therefore risks leaking sensitive data to the server that is the target of the second HTTP request. libcurl...

Haxx libcurl 信息泄露漏洞

HAXX Haxx libcurl is a free, open source client-side URL transport library from the Swedish company HAXX. The library supports FTP, FTPS, TFTP, HTTP and more. An information disclosure vulnerability exists in Haxx libcurl, which can be exploited by an attacker to bypass access restrictions on dat...

Haxx libcurl 安全漏洞

HAXX libcurl is an open source client-side URL transport library from the Swedish company Haxx. It supports protocols such as FTP, SFTP, TFTP and HTTP. HAXX libcurl suffers from a man-in-the-middle attack vulnerability that can be exploited by an attacker to act as a man-in-the-middle by...

curl -- TLS 1.3 session ticket proxy host mixup

Daniel Stenberg reports: Enabled by default, libcurl supports the use of TLS 1.3 session tickets to resume previous TLS sessions to speed up subsequent TLS handshakes. When using a HTTPS proxy and TLS 1.3, libcurl can confuse session tickets arriving from the HTTPS proxy but work as if they arriv...

Moderate: Red Hat Security Advisory: curl security update

An update for curl is now available for Red Hat Enterprise Linux 7.7 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for eac...