http: fix httpsig with auth-redir

Do not let unrelated credentials from a redirected URL bypass the
cross-host auth boundary

Verified by test 5023 to 5025

Follow-up to a55731050e

Closes #22395
This commit is contained in:
Daniel Stenberg 2026-07-25 23:48:07 +02:00
parent 6b1ff5407e
commit acf4498381
No known key found for this signature in database
GPG key ID: 5CC908FDB71E12C2
5 changed files with 213 additions and 5 deletions

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@ -672,10 +672,17 @@ static CURLcode output_auth_headers(struct Curl_easy *data,
#endif
#ifndef CURL_DISABLE_HTTPSIG
if((authstatus->picked == CURLAUTH_HTTPSIG) && !proxy) {
auth = "HTTPSIG";
result = Curl_output_httpsig(data);
if(result)
return result;
/* HTTPSIG uses its own configured key material rather than
data->state.creds. Do not let unrelated credentials from a
redirected URL bypass the cross-host auth boundary. */
if(Curl_auth_allowed_to_host(data)) {
auth = "HTTPSIG";
result = Curl_output_httpsig(data);
if(result)
return result;
}
else
authstatus->done = TRUE;
}
else
#endif

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@ -294,7 +294,8 @@ test4000 test4001 \
\
test5000 test5001 test5002 test5003 test5004 test5005 test5006 test5007 \
test5008 test5009 test5010 test5011 test5012 test5013 test5014 test5015 \
test5016 test5017 test5018 test5019 test5020 test5021 test5022
test5016 test5017 test5018 test5019 test5020 test5021 test5022 test5023 \
test5024 test5025
EXTRA_DIST = $(TESTCASES) DISABLED data-xml1 \
data1461.txt data1463.txt \

66
tests/data/test5023 Normal file
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@ -0,0 +1,66 @@
<?xml version="1.0" encoding="US-ASCII"?>
<testcase>
<info>
<keywords>
HTTP
httpsig
RFC9421
</keywords>
</info>
# Server-side
<reply>
<data crlf="headers" nocheck="yes">
HTTP/1.1 301 OK
Content-Length: 0
Location: http://example.org:9000/%TESTNUMBER0002
</data>
<data2 crlf="headers" nocheck="yes">
HTTP/1.1 200 OK
Date: Tue, 09 Nov 2010 14:49:00 GMT
Server: test-server/fake
Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
Content-Length: 6
Connection: close
Content-Type: text/html
-foo-
</data2>
</reply>
# Client-side
<client>
<server>
http
</server>
<features>
Debug
httpsig
</features>
<name>
HTTP Message Signature with cross-origin redirect
</name>
<command>
"http://example.com:8000/%TESTNUMBER/resource?action=read" --httpsig-algo "ed25519" --httpsig-key @%SRCDIR/data/data-httpsig-ed25519.key --httpsig-keyid "my-key-1" --connect-to example.com:8000:%HOSTIP:%HTTPPORT --connect-to example.org:9000:%HOSTIP:%HTTPPORT --location
</command>
</client>
# Verify data after the test has been "shot"
<verify>
<protocol crlf="headers">
GET /%TESTNUMBER/resource?action=read HTTP/1.1
Host: example.com:8000
Signature-Input: sig1=("@method" "@authority" "@path" "@query");created=0;keyid="my-key-1";alg="ed25519"
Signature: sig1=:faTRQjDfWWm39STQkXyafoAp6ee2FCPh2KMefXOB51WAvoOdc6/Uwp9LW4zNWI7r+ivTKY7oSDb5kqcPJ/aSAQ==:
User-Agent: curl/%VERSION
Accept: */*
GET /%TESTNUMBER0002 HTTP/1.1
Host: example.org:9000
User-Agent: curl/%VERSION
Accept: */*
</protocol>
</verify>
</testcase>

68
tests/data/test5024 Normal file
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@ -0,0 +1,68 @@
<?xml version="1.0" encoding="US-ASCII"?>
<testcase>
<info>
<keywords>
HTTP
httpsig
RFC9421
</keywords>
</info>
# Server-side
<reply>
<data crlf="headers" nocheck="yes">
HTTP/1.1 301 OK
Content-Length: 0
Location: /%TESTNUMBER0002
</data>
<data2 crlf="headers" nocheck="yes">
HTTP/1.1 200 OK
Date: Tue, 09 Nov 2010 14:49:00 GMT
Server: test-server/fake
Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
Content-Length: 6
Connection: close
Content-Type: text/html
-foo-
</data2>
</reply>
# Client-side
<client>
<server>
http
</server>
<features>
Debug
httpsig
</features>
<name>
HTTP Message Signature with same-origin redirect
</name>
<command>
"http://example.com:8000/%TESTNUMBER/resource?action=read" --httpsig-algo "ed25519" --httpsig-key @%SRCDIR/data/data-httpsig-ed25519.key --httpsig-keyid "my-key-1" --connect-to example.com:8000:%HOSTIP:%HTTPPORT --location
</command>
</client>
# Verify data after the test has been "shot"
<verify>
<protocol crlf="headers">
GET /%TESTNUMBER/resource?action=read HTTP/1.1
Host: example.com:8000
Signature-Input: sig1=("@method" "@authority" "@path" "@query");created=0;keyid="my-key-1";alg="ed25519"
Signature: sig1=:pxRrwEySHVgwXOI93y5KxKytfoXU6leQpC7i82Uodh8+oI7ycqCogD4PUU1p0RUAzoqeT2RHVWIN7Qg3k4A9DQ==:
User-Agent: curl/%VERSION
Accept: */*
GET /%TESTNUMBER0002 HTTP/1.1
Host: example.com:8000
Signature-Input: sig1=("@method" "@authority" "@path");created=0;keyid="my-key-1";alg="ed25519"
Signature: sig1=:QVx0WyxuyHqb3j0YihCLaWYdZOySKoIezj6FmTzsJprSqgm6yUsFbcWek4r6pALF1/jKGwNB1Rbyv3DE/pn/BA==:
User-Agent: curl/%VERSION
Accept: */*
</protocol>
</verify>
</testcase>

66
tests/data/test5025 Normal file
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@ -0,0 +1,66 @@
<?xml version="1.0" encoding="US-ASCII"?>
<testcase>
<info>
<keywords>
HTTP
httpsig
RFC9421
</keywords>
</info>
# Server-side
<reply>
<data crlf="headers" nocheck="yes">
HTTP/1.1 301 OK
Content-Length: 0
Location: http://bob:alice@example.org:9000/%TESTNUMBER0002
</data>
<data2 crlf="headers" nocheck="yes">
HTTP/1.1 200 OK
Date: Tue, 09 Nov 2010 14:49:00 GMT
Server: test-server/fake
Last-Modified: Tue, 13 Jun 2000 12:10:00 GMT
Content-Length: 6
Connection: close
Content-Type: text/html
-foo-
</data2>
</reply>
# Client-side
<client>
<server>
http
</server>
<features>
Debug
httpsig
</features>
<name>
HTTP Message Signature with cross-origin + user auth redirect
</name>
<command>
"http://example.com:8000/%TESTNUMBER/resource?action=read" --httpsig-algo "ed25519" --httpsig-key @%SRCDIR/data/data-httpsig-ed25519.key --httpsig-keyid "my-key-1" --connect-to example.com:8000:%HOSTIP:%HTTPPORT --connect-to example.org:9000:%HOSTIP:%HTTPPORT --location
</command>
</client>
# Verify data after the test has been "shot"
<verify>
<protocol crlf="headers">
GET /%TESTNUMBER/resource?action=read HTTP/1.1
Host: example.com:8000
Signature-Input: sig1=("@method" "@authority" "@path" "@query");created=0;keyid="my-key-1";alg="ed25519"
Signature: sig1=:OUXXFiQlk/CEUksEkxvuivcFqWxL3xoPIZhB9FKTrx4MbhQqCRYMT0CQCUA9wCeRGkzmpGComBk5oPwKZr+MDg==:
User-Agent: curl/%VERSION
Accept: */*
GET /%TESTNUMBER0002 HTTP/1.1
Host: example.org:9000
User-Agent: curl/%VERSION
Accept: */*
</protocol>
</verify>
</testcase>