5.9
MEDIUM
CVE-2017-12871
SimpleSAMLphp AES encryption weak IV flood attack
Description

The aesEncrypt method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.x through 1.14.11 makes it easier for context-dependent attackers to bypass the encryption protection mechanism by leveraging use of the first 16 bytes of the secret key as the initialization vector (IV).

INFO

Published Date :

Sept. 1, 2017, 9:29 p.m.

Last Modified :

Sept. 6, 2017, 1:36 a.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.2
Affected Products

The following products are affected by CVE-2017-12871 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Simplesamlphp simplesamlphp
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-12871.

URL Resource
https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904 Issue Tracking Patch Third Party Advisory
https://simplesamlphp.org/security/201703-02 Issue Tracking Patch Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-12871 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-12871 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Sep. 06, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://simplesamlphp.org/security/201703-02 No Types Assigned https://simplesamlphp.org/security/201703-02 Issue Tracking, Patch, Third Party Advisory
    Changed Reference Type https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904 No Types Assigned https://github.com/simplesamlphp/simplesamlphp/commit/77df6a932d46daa35e364925eb73a175010dc904 Issue Tracking, Patch, Third Party Advisory
    Added CWE CWE-326
    Added CPE Configuration OR *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.0:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.1:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.2:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.3:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.4:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.5:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.6:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.7:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.8:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.9:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.10:*:*:*:*:*:*:* *cpe:2.3:a:simplesamlphp:simplesamlphp:1.14.11:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-12871 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-12871 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.09 }} 0.01%

score

0.38621

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability