9.8

CVE-2016-3957

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Web2py ≫ Web2py Version < 2.14.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 4.99% 0.911
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 9.8 3.9 5.9
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd@nist.gov 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
CWE-502 Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

https://usn.ubuntu.com/4030-1/
https://devco.re/blog/2017/01/03/web2py-unserialize-code-execution-CVE-2016-3957/
Third Party Advisory
Exploit
Technical Description
https://github.com/web2py/web2py/blob/R-2.14.1/gluon/utils.py#L200
Third Party Advisory