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-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to busybox in Ubuntu. https://bugs.launchpad.net/bugs/1879533 Title: busybox does not verify TLS connections with CONFIG_FEATURE_WGET_OPENSSL=y and CONFIG_FEATURE_WGET_HTTPS unset, and doesn't warn either about it Status in busybox package in Ubuntu: Fix Released Status in busybox source package in Focal: Fix Released Status in busybox source package in Groovy: Fix Released Bug description: [Impact] * CONFIG_FEATURE_WGET_OPENSSL=y enables https support in wget busybox applet using openssl * CONFIG_FEATURE_WGET_HTTPS=y enables https support in wget busybox applet using internal TLS code * CVE-2018-1000500 ensured that when CONFIG_FEATURE_WGET_HTTPS=y is used, a message is printed to notify the users that TLS verification is not perfomed. * However, when one configures with CONFIG_FEATURE_WGET_OPENSSL=y and CONFIG_FEATURE_WGET_HTTPS unset - no such message is printed. * Also TLS verification is not performed under OPENSSL case. * When performing https requests, it works openssl s_client and communicates with it to perform https download * Whilst doing so, it does not pass `-verify_return_error` option, meaning any verification errors are ignored * There is no warning that TLS verification was not performed [Test Case] * Preparation: sudo apt install busybox; or build busybox with CONFIG_FEATURE_WGET_OPENSSL=y * Test case: /bin/busybox wget https://untrusted-root.badssl.com/ * Expected: download failed, or download suceeds with warning printed that verification is disabled * Observed: download success without a warning that verification is disabled. $ /bin/busybox wget https://untrusted-root.badssl.com/ Connecting to untrusted-root.badssl.com (104.154.89.105:443) index.html 100% |*************************************************************************************| 600 0:00:00 ETA $ cat index.html | grep certificate The certificate for this site is signed using an untrusted root. [Regression Potential] * The fact that /bin/busybox wget https:// succeeds without TLS verification might be relied upon. If this issue is fixed, ensure that `--no-check-certificate` is honored. [Other Info] * Proposed fix pass `-verify_return_error` to s_client, unless `--no-check- certificate` is specified To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/busybox/+bug/1879533/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
