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Merged
pull merged 1 commit into from
Dec 12, 2025
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Merged

[pull] master from swisskyrepo:master #379

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14 changes: 8 additions & 6 deletions Insecure Deserialization/README.md
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Expand Up @@ -19,12 +19,14 @@ Check the following sub-sections, located in other chapters :
* [Python : pickle, PyYAML, ...](Python.md)
* [.NET : ysoserial.net, ...](DotNET.md)

| Object Type | Header (Hex) | Header (Base64) |
|-----------------|--------------|-----------------|
| Java Serialized | AC ED | rO |
| .NET ViewState | FF 01 | /w |
| Python Pickle | 80 04 95 | gASV |
| PHP Serialized | 4F 3A | Tz |
| Object Type | Header (Hex) | Header (Base64) | Indicators |
|-----------------|----------------|-----------------|------------------|
| .NET ViewState | `FF 01` | `/w` | Commonly found inside hidden inputs around HTML forms |
| BinaryFormatter | `0001 0000 00FF FFFF FF01` | `AAEAAAD` | Base64 decode and check for the long `FF FF FF FF` sequence. |
| Java Serialized | `AC ED` | `rO` | Base64 decode and check first bytes. |
| PHP Serialized | `4F 3A` | `Tz` | Prefixes like `O:, a:, s:, i:, b:` and length indicators. |
| Python Pickle | `80 04 95` | `gASV` | Text: opcodes like `(lp0, S'Test'`. |
| Ruby Marshal | `04 08` | `BAgK` | Base64 decode and look for `\x04\x08` at the start. |

## POP Gadgets

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