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CVE-2007-4559 Patch #1

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63 changes: 60 additions & 3 deletions ssd/src/utils/common/archives.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,15 +43,72 @@ def extract_archive(archive_path, destination_path):
elif archive_filename.endswith(".tar"):
archive_name = archive_filename[:-4]
with tarfile.open(archive_path, "r:") as file:
file.extractall(temp_path)
def is_within_directory(directory, target):

abs_directory = os.path.abspath(directory)
abs_target = os.path.abspath(target)

prefix = os.path.commonprefix([abs_directory, abs_target])

return prefix == abs_directory

def safe_extract(tar, path=".", members=None, *, numeric_owner=False):

for member in tar.getmembers():
member_path = os.path.join(path, member.name)
if not is_within_directory(path, member_path):
raise Exception("Attempted Path Traversal in Tar File")

tar.extractall(path, members, numeric_owner=numeric_owner)


safe_extract(file, temp_path)
elif archive_filename.endswith(".tar.bz2"):
archive_name = archive_filename[:-8]
with tarfile.open(archive_path, "r:bz2") as file:
file.extractall(temp_path)
def is_within_directory(directory, target):

abs_directory = os.path.abspath(directory)
abs_target = os.path.abspath(target)

prefix = os.path.commonprefix([abs_directory, abs_target])

return prefix == abs_directory

def safe_extract(tar, path=".", members=None, *, numeric_owner=False):

for member in tar.getmembers():
member_path = os.path.join(path, member.name)
if not is_within_directory(path, member_path):
raise Exception("Attempted Path Traversal in Tar File")

tar.extractall(path, members, numeric_owner=numeric_owner)


safe_extract(file, temp_path)
elif archive_filename.endswith(".tar.gz"):
archive_name = archive_filename[:-7]
with tarfile.open(archive_path, "r:gz") as file:
file.extractall(temp_path)
def is_within_directory(directory, target):

abs_directory = os.path.abspath(directory)
abs_target = os.path.abspath(target)

prefix = os.path.commonprefix([abs_directory, abs_target])

return prefix == abs_directory

def safe_extract(tar, path=".", members=None, *, numeric_owner=False):

for member in tar.getmembers():
member_path = os.path.join(path, member.name)
if not is_within_directory(path, member_path):
raise Exception("Attempted Path Traversal in Tar File")

tar.extractall(path, members, numeric_owner=numeric_owner)


safe_extract(file, temp_path)
else:
raise NotImplementedError("The type of the archive '{}' is currently not supported.".format(archive_filename))

Expand Down
63 changes: 60 additions & 3 deletions ssd/utils/common/archives.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -43,15 +43,72 @@ def extract_archive(archive_path, destination_path):
elif archive_filename.endswith(".tar"):
archive_name = archive_filename[:-4]
with tarfile.open(archive_path, "r:") as file:
file.extractall(temp_path)
def is_within_directory(directory, target):

abs_directory = os.path.abspath(directory)
abs_target = os.path.abspath(target)

prefix = os.path.commonprefix([abs_directory, abs_target])

return prefix == abs_directory

def safe_extract(tar, path=".", members=None, *, numeric_owner=False):

for member in tar.getmembers():
member_path = os.path.join(path, member.name)
if not is_within_directory(path, member_path):
raise Exception("Attempted Path Traversal in Tar File")

tar.extractall(path, members, numeric_owner=numeric_owner)


safe_extract(file, temp_path)
elif archive_filename.endswith(".tar.bz2"):
archive_name = archive_filename[:-8]
with tarfile.open(archive_path, "r:bz2") as file:
file.extractall(temp_path)
def is_within_directory(directory, target):

abs_directory = os.path.abspath(directory)
abs_target = os.path.abspath(target)

prefix = os.path.commonprefix([abs_directory, abs_target])

return prefix == abs_directory

def safe_extract(tar, path=".", members=None, *, numeric_owner=False):

for member in tar.getmembers():
member_path = os.path.join(path, member.name)
if not is_within_directory(path, member_path):
raise Exception("Attempted Path Traversal in Tar File")

tar.extractall(path, members, numeric_owner=numeric_owner)


safe_extract(file, temp_path)
elif archive_filename.endswith(".tar.gz"):
archive_name = archive_filename[:-7]
with tarfile.open(archive_path, "r:gz") as file:
file.extractall(temp_path)
def is_within_directory(directory, target):

abs_directory = os.path.abspath(directory)
abs_target = os.path.abspath(target)

prefix = os.path.commonprefix([abs_directory, abs_target])

return prefix == abs_directory

def safe_extract(tar, path=".", members=None, *, numeric_owner=False):

for member in tar.getmembers():
member_path = os.path.join(path, member.name)
if not is_within_directory(path, member_path):
raise Exception("Attempted Path Traversal in Tar File")

tar.extractall(path, members, numeric_owner=numeric_owner)


safe_extract(file, temp_path)
else:
raise NotImplementedError("The type of the archive '{}' is currently not supported.".format(archive_filename))

Expand Down