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缺陷编号：wooyun-2013-021602

漏洞标题：新浪漏洞系列第四弹-squid ACL配置不严格导致信息泄露漏洞

相关厂商：新浪

漏洞作者： cnbird

提交时间：2013-04-11 16:36

修复时间：2013-05-26 16:36

公开时间：2013-05-26 16:36

漏洞类型：系统/服务运维配置不当

危害等级：中

自评Rank：10

漏洞状态：厂商已经确认

漏洞来源： http://www.wooyun.org，如有疑问或需要帮助请联系 [email protected]

Tags标签： 无

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分享漏洞：

漏洞详情

披露状态：

2013-04-11： 细节已通知厂商并且等待厂商处理中
2013-04-12： 厂商已经确认，细节仅向厂商公开
2013-04-22： 细节向核心白帽子及相关领域专家公开
2013-05-02： 细节向普通白帽子公开
2013-05-12： 细节向实习白帽子公开
2013-05-26： 细节向公众公开

简要描述：

新浪漏洞系列第四弹-squid ACL配置不严格导致信息泄露漏洞
让我等运维菜鸟学习学习squid的命中率和缓存策略到底如何
Request Hit Ratios: 5min: 34.5%, 60min: 41.0%
Byte Hit Ratios: 5min: 30.6%, 60min: 54.9%
Request Memory Hit Ratios: 5min: 65.4%, 60min: 43.7%
Request Disk Hit Ratios: 5min: 31.5%, 60min: 54.1%
证明IO是不是有瓶颈神马的呢,还是object设置的太小命中不了呢？命中率有待提高。
我胡说的，希望专业新浪运维搞基工程师来解释。

详细说明：

新浪漏洞系列第四弹-squid ACL配置不严格导致信息泄露漏洞
让我等运维菜鸟学习学习squid的命中率和缓存策略到底如何
Request Hit Ratios: 5min: 34.5%, 60min: 41.0%
Byte Hit Ratios: 5min: 30.6%, 60min: 54.9%
Request Memory Hit Ratios: 5min: 65.4%, 60min: 43.7%
Request Disk Hit Ratios: 5min: 31.5%, 60min: 54.1%
证明IO是不是有瓶颈神马的呢,还是object设置的太小命中不了呢？命中率有待提高。
我胡说的，希望专业新浪运维搞基工程师来解释。

漏洞证明：

新浪漏洞系列第四弹-squid ACL配置不严格导致信息泄露漏洞
让我等运维菜鸟学习学习squid的命中率和缓存策略到底如何
Request Hit Ratios: 5min: 34.5%, 60min: 41.0%
Byte Hit Ratios: 5min: 30.6%, 60min: 54.9%
Request Memory Hit Ratios: 5min: 65.4%, 60min: 43.7%
Request Disk Hit Ratios: 5min: 31.5%, 60min: 54.1%
证明IO是不是有瓶颈神马的呢,还是object设置的太小命中不了呢？命中率有待提高。
我胡说的，希望专业新浪运维搞基工程师来解释。
漏洞证明:

root@bt:~# squidclient -h 123.125.104.36 -p 8080 mgr:info
HTTP/1.0 200 OK
Server: squid/2.7.STABLE9
Date: Thu, 11 Apr 2013 08:20:11 GMT
Content-Type: text/plain
Expires: Thu, 11 Apr 2013 08:20:11 GMT
X-Cache: MISS from tc-42-36.web.video.sina.com.cn
Connection: close
Squid Object Cache: Version 2.7.STABLE9
Start Time:     Mon, 01 Apr 2013 10:56:46 GMT
Current Time:   Thu, 11 Apr 2013 08:20:11 GMT
Connection information for squid:
        Number of clients accessing cache:      11
        Number of HTTP requests received:       38334201
        Number of ICP messages received:        0
        Number of ICP messages sent:    0
        Number of queued ICP replies:   0
        Request failure ratio:   0.00
        Average HTTP requests per minute since start:   2691.4
        Average ICP messages per minute since start:    0.0
        Select loop called: 1417309818 times, 0.603 ms avg
Cache information for squid:
        Request Hit Ratios:     5min: 34.5%, 60min: 41.0%
        Byte Hit Ratios:        5min: 30.6%, 60min: 54.9%
        Request Memory Hit Ratios:      5min: 65.4%, 60min: 43.7%
        Request Disk Hit Ratios:        5min: 31.5%, 60min: 54.1%
        Storage Swap size:      55639596 KB
        Storage Mem size:       393060 KB
        Mean Object Size:       10.76 KB
        Requests given to unlinkd:      0
Median Service Times (seconds)  5 min    60 min:
        HTTP Requests (All):   0.00865  0.01469
        Cache Misses:          0.05046  0.05046
        Cache Hits:            0.00000  0.00091
        Near Hits:             0.00102  0.00179
        Not-Modified Replies:  0.00000  0.00000
        DNS Lookups:           0.00000  0.00278
        ICP Queries:           0.00000  0.00000
Resource usage for squid:
        UP Time:        854604.071 seconds
        CPU Time:       41530.212 seconds
        CPU Usage:      4.86%
        CPU Usage, 5 minute avg:        2.28%
        CPU Usage, 60 minute avg:       4.79%
        Process Data Segment Size via sbrk(): 986324 KB
        Maximum Resident Size: 0 KB
        Page faults with physical i/o: 2
Memory usage for squid via mallinfo():
        Total space in arena:  1321304 KB
        Ordinary blocks:       1314800 KB   5396 blks
        Small blocks:               0 KB      0 blks
        Holding blocks:         42508 KB      6 blks
        Free Small blocks:          0 KB
        Free Ordinary blocks:    6503 KB
        Total in use:          1357308 KB 100%
        Total free:              6503 KB 0%
        Total size:            1363812 KB
Memory accounted for:
        Total accounted:       1054631 KB
        memPoolAlloc calls: 2573528687
        memPoolFree calls: 2557756141
File descriptor usage for squid:
        Maximum number of file descriptors:   65535
        Largest file desc currently in use:     25
        Number of file desc currently in use:   22
        Files queued for open:                   0
        Available number of file descriptors: 65513
        Reserved number of file descriptors:   100
        Store Disk files open:                   1
        IO loop method:                     epoll
Internal Data Structures:
        5172141 StoreEntries
          9308 StoreEntries with MemObjects
          9302 Hot Object Cache Items
        5172076 on-disk objects


同样有问题的包括
squidclient -h 123.125.104.38 -p 8080 mgr:info
squidclient -h 123.125.104.39 -p 8080 mgr:info
还是自查吧，这个段比较多

修复方案：

找运维搞基工程师即可

版权声明：转载请注明来源 cnbird@乌云

漏洞回应

厂商回应：

危害等级：低

漏洞Rank：3

确认时间：2013-04-12 15:43

厂商回复：

感谢提供，已经在处理了。

最新状态：

暂无