diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/SSL-PROBLEMS | 14 | ||||
| -rw-r--r-- | docs/curl.1 | 4 | ||||
| -rw-r--r-- | docs/libcurl/opts/CURLOPT_SSL_OPTIONS.3 | 26 |
3 files changed, 37 insertions, 7 deletions
diff --git a/docs/SSL-PROBLEMS b/docs/SSL-PROBLEMS index 5a56d3da5..45faa241c 100644 --- a/docs/SSL-PROBLEMS +++ b/docs/SSL-PROBLEMS @@ -71,3 +71,17 @@ Allow BEAST introduced. Exactly as it sounds, it re-introduces the BEAST vulnerability but on the other hand it allows curl to connect to that kind of strange servers. + +Disabling certificate revocation checks + + Some SSL backends may do certificate revocation checks (CRL, OCSP, etc) + depending on the OS or build configuration. The --ssl-no-revoke option was + introduced in 7.44.0 to disable revocation checking but currently is only + supported for WinSSL (the native Windows SSL library), with an exception in + the case of Windows' Untrusted Publishers blacklist which it seems can't be + bypassed. This option may have broader support to accommodate other SSL + backends in the future. + + References: + + http://curl.haxx.se/docs/ssl-compared.html diff --git a/docs/curl.1 b/docs/curl.1 index afd4e8c35..69ab9781d 100644 --- a/docs/curl.1 +++ b/docs/curl.1 @@ -1545,6 +1545,10 @@ and TLS1.0 protocols known as BEAST. If this option isn't used, the SSL layer may use workarounds known to cause interoperability problems with some older SSL implementations. WARNING: this option loosens the SSL security, and by using this flag you ask for exactly that. (Added in 7.25.0) +.IP "--ssl-no-revoke" +(WinSSL) This option tells curl to disable certificate revocation checks. +WARNING: this option loosens the SSL security, and by using this flag you ask +for exactly that. (Added in 7.44.0) .IP "--socks4 <host[:port]>" Use the specified SOCKS4 proxy. If the port number is not specified, it is assumed at port 1080. (Added in 7.15.2) diff --git a/docs/libcurl/opts/CURLOPT_SSL_OPTIONS.3 b/docs/libcurl/opts/CURLOPT_SSL_OPTIONS.3 index 09bcb96cf..0afd2fb6a 100644 --- a/docs/libcurl/opts/CURLOPT_SSL_OPTIONS.3 +++ b/docs/libcurl/opts/CURLOPT_SSL_OPTIONS.3 @@ -30,13 +30,25 @@ CURLcode curl_easy_setopt(CURL *handle, CURLOPT_SSL_OPTIONS, long bitmask); .SH DESCRIPTION Pass a long with a bitmask to tell libcurl about specific SSL behaviors. -\fICURLSSLOPT_ALLOW_BEAST\fP is the only supported bit and by setting this the -user will tell libcurl to not attempt to use any workarounds for a security -flaw in the SSL3 and TLS1.0 protocols. If this option isn't used or this bit -is set to 0, the SSL layer libcurl uses may use a work-around for this flaw -although it might cause interoperability problems with some (older) SSL -implementations. WARNING: avoiding this work-around lessens the security, and -by setting this option to 1 you ask for exactly that. +\fICURLSSLOPT_ALLOW_BEAST\fP tells libcurl to not attempt to use any +workarounds for a security flaw in the SSL3 and TLS1.0 protocols. If this +option isn't used or this bit is set to 0, the SSL layer libcurl uses may use a +work-around for this flaw although it might cause interoperability problems +with some (older) SSL implementations. WARNING: avoiding this work-around +lessens the security, and by setting this option to 1 you ask for exactly that. +This option is only supported for DarwinSSL, NSS and OpenSSL. + +Added in 7.44.0: + +\fICURLSSLOPT_NO_REVOKE\fP tells libcurl to disable certificate revocation +checks for those SSL backends where such behavior is present. \fBCurrently this +option is only supported for WinSSL (the native Windows SSL library), with an +exception in the case of Windows' Untrusted Publishers blacklist which it seems +can't be bypassed.\fP This option may have broader support to accommodate other +SSL backends in the future. +http://curl.haxx.se/docs/ssl-compared.html + + .SH DEFAULT 0 .SH PROTOCOLS |