When using http.cookies.Morsel, user-controlled cookie values and parameters can allow injecting HTTP headers into messages. Patch rejects all control characters within cookie names, values, and parameters.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
python software foundation:cpython
References 9
https://github.com/python/cpython/commit/95746b3a13a985787ef53b977129041971ed7f…
cna@python.org
https://github.com/python/cpython/issues/143919
cna@python.org
https://github.com/python/cpython/pull/143920
cna@python.org
https://mail.python.org/archives/list/security-announce@python.org/thread/6VFLQ…
cna@python.org
https://github.com/python/cpython/commit/712452e6f1d4b9f7f8c4c92ebfcaac1705faa4…
NVD
https://github.com/python/cpython/commit/62700107418eb2cca3fc88da036a243ea975f1…
NVD
https://github.com/python/cpython/commit/7852d72b653fea0199acf5fc2a84f6f8b84eba…
NVD
https://github.com/python/cpython/commit/918387e4912d12ffc166c8f2a38df92b6ec756…
NVD
https://github.com/python/cpython/commit/b1869ff648bbee0717221d09e6deff46617f3e…
NVD