Metrics
Metrics |
Score |
Severity |
CVSS Vector |
Source |
V2 |
10 |
|
AV:N/AC:L/Au:N/C:C/I:C/A:C |
[email protected] |
EPSS
EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.
EPSS Score
The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.
EPSS Percentile
The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
Exploit information
Exploit Database EDB-ID : 38969
Publication date : 2015-12-13 23h00 +00:00
Author : Google Security Research
EDB Verified : Yes
Source: https://code.google.com/p/google-security-research/issues/detail?id=548
If IExternalizable.readExternal is overridden with a value that is not a function, Flash assumes it is a function even though it is not one. This leads to execution of a 'method' outside of the ActionScript object's ActionScript vtable, leading to memory corruption.
A sample swf is attached. ActionScript code is also attached, but it does not compile to the needed to swf. To get the PoC, decompress the swf using flasm -x myswf, and then search for "teadExternal" and change it to "readExternal".
Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/38969.zip
Products Mentioned
Configuraton 0
Adobe>>Flash_player >> Version To (including) 11.2.202.535
Linux>>Linux_kernel >> Version -
Configuraton 0
Adobe>>Flash_player >> Version To (including) 19.0.0.207
Apple>>Mac_os_x >> Version -
Microsoft>>Windows >> Version -
References