CVE-2016-3957

The secure_load function in gluon/utils.py in web2py before 2.14.2 uses pickle.loads to deserialize session information stored in cookies, which might allow remote attackers to execute arbitrary code by leveraging knowledge of encryption_key.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 94%
VendorProductVersion
web2pyweb2py
𝑥
< 2.14.2
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
web2py
disco
dne
cosmic
dne
bionic
dne
artful
ignored
xenial
Fixed 2.12.3-1ubuntu0.1
released
trusty
dne
Common Weakness Enumeration
References
https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/
https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.py#L200
https://usn.ubuntu.com/4030-1/
https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/
https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.py#L200
https://usn.ubuntu.com/4030-1/