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| <h1>mod_pagespeed and ngx_pagespeed Security Advisory: SSL fetching man-in-the-middle attack.</h1> |
| <dl> |
| <dt>Disclosed:</dt> |
| <dd><p>June 17th, 2014</p></dd> |
| <dt>Versions Affected:</dt> |
| <dd> |
| <ul> |
| <li>mod_pagespeed 1.7.30.1 through 1.7.30.4 (fixed in 1.7.30.5)</li> |
| <li>mod_pagespeed and ngx_pagespeed 1.8.31.1 through 1.8.31.3 (fixed in 1.8.31.4)</li> |
| </ul> |
| </dd> |
| <dt>Summary:</dt> |
| <dd><p>Some versions of mod_pagespeed and ngx_pagespeed, in order to |
| support fetching of HTTPS content, link in versions of OpenSSL |
| that are vulnerable to a man-in-the-middle attack. This attack permits |
| an adversary that can monitor and alter traffic between a client |
| (mod_pagespeed or ngx_pagespeed in this case) and a server to decrypt |
| and modify encrypted transfers, as long as both are running vulnerable |
| versions (see <a href="http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-0224"> |
| CVE-2014-0224</a> for more detail). |
| </p> |
| <p> |
| mod_pagespeed and ngx_pagespeed users are only vulnerable if they turn |
| on the optional <code>FetchHttps</code> feature. |
| </p></dd> |
| <dt>Solution:</dt> |
| <dd><p>For mod_pagespeed, update to one of versions 1.7.30.5-stable, |
| 1.8.31.4-beta or newer.</p> |
| |
| <p>For ngx_pagespeed, update to 1.8.31.4-beta or newer.</p> |
| </dd> |
| <dt>Workaround:</dt> |
| <dd> |
| <p>Use a method other than <code>FetchHttps</code> to fetch https content, |
| as described in <a href="https_support">HTTP Support</a> documentation. |
| </p> |
| </dd> |
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