diff options
| -rw-r--r-- | Lib/http/cookiejar.py | 13 | ||||
| -rw-r--r-- | Lib/test/test_http_cookiejar.py | 30 | ||||
| -rw-r--r-- | Misc/NEWS.d/next/Security/2018-10-31-15-39-17.bpo-35121.EgHv9k.rst | 4 |
3 files changed, 45 insertions, 2 deletions
diff --git a/Lib/http/cookiejar.py b/Lib/http/cookiejar.py index befe765..3a96383 100644 --- a/Lib/http/cookiejar.py +++ b/Lib/http/cookiejar.py @@ -1148,6 +1148,11 @@ class DefaultCookiePolicy(CookiePolicy): req_host, erhn = eff_request_host(request) domain = cookie.domain + if domain and not domain.startswith("."): + dotdomain = "." + domain + else: + dotdomain = domain + # strict check of non-domain cookies: Mozilla does this, MSIE5 doesn't if (cookie.version == 0 and (self.strict_ns_domain & self.DomainStrictNonDomain) and @@ -1160,7 +1165,7 @@ class DefaultCookiePolicy(CookiePolicy): _debug(" effective request-host name %s does not domain-match " "RFC 2965 cookie domain %s", erhn, domain) return False - if cookie.version == 0 and not ("."+erhn).endswith(domain): + if cookie.version == 0 and not ("."+erhn).endswith(dotdomain): _debug(" request-host %s does not match Netscape cookie domain " "%s", req_host, domain) return False @@ -1174,7 +1179,11 @@ class DefaultCookiePolicy(CookiePolicy): req_host = "."+req_host if not erhn.startswith("."): erhn = "."+erhn - if not (req_host.endswith(domain) or erhn.endswith(domain)): + if domain and not domain.startswith("."): + dotdomain = "." + domain + else: + dotdomain = domain + if not (req_host.endswith(dotdomain) or erhn.endswith(dotdomain)): #_debug(" request domain %s does not match cookie domain %s", # req_host, domain) return False diff --git a/Lib/test/test_http_cookiejar.py b/Lib/test/test_http_cookiejar.py index 170549c..acf315a 100644 --- a/Lib/test/test_http_cookiejar.py +++ b/Lib/test/test_http_cookiejar.py @@ -440,6 +440,7 @@ class CookieTests(unittest.TestCase): ("http://foo.bar.com/", ".foo.bar.com", True), ("http://foo.bar.com/", "foo.bar.com", True), ("http://foo.bar.com/", ".bar.com", True), + ("http://foo.bar.com/", "bar.com", True), ("http://foo.bar.com/", "com", True), ("http://foo.com/", "rhubarb.foo.com", False), ("http://foo.com/", ".foo.com", True), @@ -450,6 +451,8 @@ class CookieTests(unittest.TestCase): ("http://foo/", "foo", True), ("http://foo/", "foo.local", True), ("http://foo/", ".local", True), + ("http://barfoo.com", ".foo.com", False), + ("http://barfoo.com", "foo.com", False), ]: request = urllib.request.Request(url) r = pol.domain_return_ok(domain, request) @@ -984,6 +987,33 @@ class CookieTests(unittest.TestCase): c.add_cookie_header(req) self.assertFalse(req.has_header("Cookie")) + c.clear() + + pol.set_blocked_domains([]) + req = urllib.request.Request("http://acme.com/") + res = FakeResponse(headers, "http://acme.com/") + cookies = c.make_cookies(res, req) + c.extract_cookies(res, req) + self.assertEqual(len(c), 1) + + req = urllib.request.Request("http://acme.com/") + c.add_cookie_header(req) + self.assertTrue(req.has_header("Cookie")) + + req = urllib.request.Request("http://badacme.com/") + c.add_cookie_header(req) + self.assertFalse(pol.return_ok(cookies[0], req)) + self.assertFalse(req.has_header("Cookie")) + + p = pol.set_blocked_domains(["acme.com"]) + req = urllib.request.Request("http://acme.com/") + c.add_cookie_header(req) + self.assertFalse(req.has_header("Cookie")) + + req = urllib.request.Request("http://badacme.com/") + c.add_cookie_header(req) + self.assertFalse(req.has_header("Cookie")) + def test_secure(self): for ns in True, False: for whitespace in " ", "": diff --git a/Misc/NEWS.d/next/Security/2018-10-31-15-39-17.bpo-35121.EgHv9k.rst b/Misc/NEWS.d/next/Security/2018-10-31-15-39-17.bpo-35121.EgHv9k.rst new file mode 100644 index 0000000..d2eb8f1 --- /dev/null +++ b/Misc/NEWS.d/next/Security/2018-10-31-15-39-17.bpo-35121.EgHv9k.rst @@ -0,0 +1,4 @@ +Don't send cookies of domain A without Domain attribute to domain B +when domain A is a suffix match of domain B while using a cookiejar +with :class:`http.cookiejar.DefaultCookiePolicy` policy. Patch by +Karthikeyan Singaravelan. |