class documentation

class Tainter(object):

Entry point object for tainting data.

Taints can be created by using the simple_taint function. The last_taint method can be used to retrieve the started taint.

Please refer to the taint package documentation for more information.

Examples

>>> trace = reven_server.trace
>>> tainter = reven2.preview.taint.Tainter(trace)

Method	`__init__`	Undocumented
Method	`simple_taint`	Request the server to start a taint such that its parameters are the arguments to this function.
Method	`last_taint`	Get the last taint started by `simple_taint`
Method	`__repr__`	Undocumented
Instance Variable	`_trace`	Undocumented
Instance Variable	`_taint_data`	Undocumented
Static Method	`_handle_tag`	Undocumented

def __init__(self, trace):

Undocumented

_trace =

Undocumented

_taint_data =

Undocumented

def simple_taint(self, tag0, tag1=None, from_context=None, to_context=None, is_forward=True):

Request the server to start a taint such that its parameters are the arguments to this function.

As this function offers a simplified API, it starts the taint with a maximum of two different taint markers.

Warnings

Each successive call to this method will cancel and discard the previously started taint if any.

Taint parameters:

Tainted data: passed by tag0 and tag1, tag0 tainted data s labeled by tag0, tag1 tainted data is labeled by tag1. Tainted data can be one of: string, list, reven2.arch.register.Register, TaintedRegisterSlice, integer (interpreted as a ds prefixed logical address), reven2.address.LogicalAddress, reven2.address.LinearAddress, reven2.address.LogicalAddressSegmentIndex, reven2.address.PhysicalAddress or TaintedMemories
Tainted range: Taint is propagated through all the Transitions between from_context and to_context
Taint direction: Forward if is_forward else Backward

Examples

>>> trace = reven_server.trace()
>>> tainter = reven2.preview.taint.Tainter(trace)
>>> # taint in forward on the full trace, starting at the first context,
>>> # "rax" with tag0, [ds:0xffffd001ea0d6040 ; 8] with tag1
>>> taint = tainter.simple_taint(tag0="rax", tag1="[ds:0xffffd001ea0d6040 ; 8]")
>>> # The same taint, with the arguments expressed differently.
>>> taint = tainter.simple_taint(tag0=reven2.arch.x64.rax, tag1=0xffffd001ea0d6040)
>>> # # A slightly different taint, where tag0 tags both `rax` and the memory address,
and where nothing it taggued with `tag1`.
>>> taint = tainter.simple_taint(tag0=[reven2.arch.x64.rax, 0xffffd001ea0d6040])

Information

Parameters	tag0	Initially tainted data marked with the `tag0` taint marker. The accepted types for this parameter are the following: a `string`, this string will be parsed by the tag parser, the string must be a comma separated list of registers and memory ranges, such as: `"rax, rbx[1:5], [0xffffd001ea0d6040], [ds:0xffffd001ea0d6040; 8], [phy:0x44554454; 16]"` an `integer` representing a memory range (`0xffffd001ea0d6040` is `[ds:0xffffd001ea0d6040; 1]`). a class from the `reven2.address` module a `reven2.arch.register.Register`. a `reven2.preview.taint.TaintedRegisterSlice`. a `reven2.preview.taint.TaintedMemories` a list mixing any of the previous possibilities, excepted string
	tag1	Initially tainted data marked with the `tag1` taint marker. The accepted types for this parameter are the same as for `tag0`
	from_context	`reven2.trace.Context` Context before the first transition in the requested taint range.
	to_context	`reven2.trace.Context` Context after the last transition in the requested taint range.
	is_forward	`bool`, `True` for forward direction and `False` for backward direction.
Returns	A `Taint` instance.

@staticmethod
def _handle_tag(tagname, tag):

Undocumented

def last_taint(self):

Get the last taint started by simple_taint

Warnings

This function can only get the last taint if that taint was started by a tainter object in the same session.

Information

Returns a Taint object if the simple_taint function was used before this method call, otherwise None.

def __repr__(self):

Undocumented

API Documentation for reven2, generated by pydoctor 21.2.2 at 2021-04-06 08:01:12.