Race condition in the symlink function in PHP 5.1.6 and previous versions allows local users to bypass the open_basedir restriction by using a combination of symlink, mkdir, and unlink functions to change the file path after the open_basedir check and before the file is opened by the underlying system, as demonstrated by symlinking a symlink into a subdirectory, to point to a parent directory via .. (dot dot) sequences, and then unlinking the resulting symlink.
| Vulnerable Product | Search on Vulmon | Subscribe to Product |
|---|---|---|
php php 4.0.1 |
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php php 4.0.7 |
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php php 4.2.1 |
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php php 4.2.2 |
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php php 4.3.3 |
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php php 4.3.4 |
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php php 4.4.1 |
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php php 4.4.2 |
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php php 5.0.4 |
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php php 5.0.5 |
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php php 5.1.4 |
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php php 5.1.5 |
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php php 4.0 |
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php php 4.0.5 |
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php php 4.0.6 |
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php php 4.1.2 |
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php php 4.2.0 |
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php php 4.3.11 |
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php php 4.3.2 |
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php php 4.3.9 |
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php php 4.4.0 |
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php php 5.0.2 |
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php php 5.0.3 |
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php php 5.1.2 |
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php php 5.1.3 |
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php php 4.0.3 |
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php php 4.0.4 |
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php php 4.1.0 |
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php php 4.1.1 |
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php php 4.3.1 |
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php php 4.3.10 |
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php php 4.3.7 |
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php php 4.3.8 |
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php php 5.0.0 |
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php php 5.0.1 |
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php php 5.1.0 |
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php php 5.1.1 |
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php php 4.0.2 |
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php php 4.2.3 |
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php php 4.2 |
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php php 4.3.0 |
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php php 4.3.5 |
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php php 4.3.6 |
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php php 4.4.3 |
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php php 4.4.4 |
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php php 5.0 |
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php php |
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