{"id":"CVE-2015-4456","aliases":["DEBIAN-CVE-2015-4456","DSA-3363-1","EUVD-2015-4476","GHSA-p85q-834g-x9vx","MGASA-2015-0256","UBUNTU-CVE-2015-4456"],"status":"published","title":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list...","description":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.","severity":{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.00825,"percentile":0.57626,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2015-07-05T17:22:03Z","modified":"2026-10-10T16:00:03Z","fixes":[{"ecosystem":"Debian:12","package":"owncloud-client","fixed_in":["1.8.4+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"owncloud-client","fixed_in":["1.8.4+dfsg-1"],"sources":["osv"]},{"ecosystem":"Debian:8","package":"owncloud-client","fixed_in":["1.7.0~beta1+really1.6.4+dfsg-1+deb8u1"],"sources":["osv"]},{"ecosystem":"Mageia:4","package":"owncloud-client","fixed_in":["1.8.3-1.mga4"],"sources":["osv"]},{"ecosystem":"Mageia:5","package":"owncloud-client","fixed_in":["1.8.3-1.mga5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"owncloud-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.4+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"owncloud-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.4+dfsg-1"}]}]},{"source":"osv","ecosystem":"Debian:8","package":"owncloud-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.7.0~beta1+really1.6.4+dfsg-1+deb8u1"}]}],"versions":["1.7.0~beta1+really1.6.4+dfsg-1"]},{"source":"osv","ecosystem":"Mageia:4","package":"owncloud-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-1.mga4"}]}]},{"source":"osv","ecosystem":"Mageia:5","package":"owncloud-client","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.3-1.mga5"}]}]}],"products":[{"vendor":"owncloud","product":"owncloud_desktop_client"}],"references":[{"url":"http://www.debian.org/security/2015/dsa-3363","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"https://github.com/owncloud/client/issues/3283","tags":["x_refsource_CONFIRM","x_transferred","report"]},{"url":"https://owncloud.org/security/advisory/?id=oc-sa-2015-009","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","report"]},{"url":"http://www.securityfocus.com/bid/75354","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-4456"},{"url":"https://github.com/advisories/GHSA-p85q-834g-x9vx"},{"url":"https://security-tracker.debian.org/tracker/CVE-2015-4456","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2015-0256.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=16106","tags":["report"]},{"url":"https://owncloud.org/changelog/desktop/","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2015-4456","tags":["report"]},{"url":"https://owncloud.org/security/advisories/improper-validation-of-certificates-when-using-self-signed-certificates/","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2015-4456","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2015-4456","description":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.","status":"published","published":"2015-10-26T14:00:00Z","modified":"2024-08-06T06:18:11.038Z","updated_at":"2026-11-02T14:35:43.698357Z"}],"euvd":[{"id":"EUVD-2015-4476","description":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.","status":"published","published":"2015-10-26T14:00:00Z","modified":"2024-08-06T06:18:11Z","updated_at":"2026-11-03T02:22:04.101765Z"}],"ghsa":[{"id":"GHSA-p85q-834g-x9vx","title":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list...","description":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.","status":"published","published":"2022-05-17T03:17:05Z","modified":"2023-01-27T05:01:48Z","updated_at":"2026-11-02T14:41:58.364763Z"}],"nvd":[{"id":"CVE-2015-4456","description":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.","status":"published","published":"2015-10-26T14:59:00.107Z","modified":"2026-06-17T00:27:18.733Z","cvss":[{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"updated_at":"2026-11-02T14:03:12.30866Z"}],"osv":[{"id":"CVE-2015-4456","description":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.","status":"published","published":"2015-10-26T14:59:00Z","modified":"2026-04-16T06:26:20.073821299Z","updated_at":"2026-11-02T15:44:00.594921Z"},{"id":"DEBIAN-CVE-2015-4456","description":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.","status":"published","published":"2015-10-26T14:59:00.107Z","modified":"2026-10-10T16:00:03.688095628Z","updated_at":"2026-11-02T15:45:26.752992Z"},{"id":"DSA-3363-1","title":"owncloud-client - security update","status":"published","published":"2015-09-20T00:00:00Z","modified":"2026-03-09T01:21:36.41969Z","updated_at":"2026-11-02T15:46:16.199525Z"},{"id":"MGASA-2015-0256","title":"Updated owncloud-client package fixes security vulnerability","description":"ownCloud Desktop Client before 1.8.2 was vulnerable against MITM attacks when\nused in combination with self-signed certificates (CVE-2015-4456).\n\nThe owncloud-client package has been updated to version 1.8.3, which fixes this\nissue as well as several other bugs\n","status":"published","published":"2015-07-05T17:22:03Z","modified":"2026-04-16T06:26:26.672535995Z","updated_at":"2026-11-02T15:49:39.792687Z"},{"id":"UBUNTU-CVE-2015-4456","description":"ownCloud Desktop Client before 1.8.2 does not call QNetworkReply::ignoreSslErrors with the list of errors to be ignored, which allows man-in-the-middle attackers to bypass the user's certificate distrust decision and obtain sensitive information by leveraging a self-signed certificate and a connection to a server using its own self-signed certificate.","status":"withdrawn","published":"2015-10-26T14:59:00Z","modified":"2025-07-16T07:17:32.386141Z","updated_at":"2026-11-02T15:54:10.385269Z"}]}}