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.

CVSS v3.0

9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS

4.94% chance of exploitation in the next 30 days, 92th percentile

Published

2018-02-06

Updated

2024-08-06

Proof-of-concept exploits (2)

• https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/
• sj/web2py-e94946d-CVE-2016-39570★ · 2018-12-19

References

• CVE Record
• NVD entry

Related

• CVE-2017-8046
• CVE-2016-3954
• CVE-2016-3962
• CVE-2016-3953
• CVE-2016-3963
• CVE-2016-3952