CVE-2017-12867 SimpleSAMLphp Invalid token creation and validation
Attackers with a secret token can extend its validity by manipulating time offsets, bypassing expiration controls in SimpleSAMLphp.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-12867?
CVE-2017-12867 is a medium-severity vulnerability in n/a, published on 29 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The SimpleSAML_Auth_TimeLimitedToken class in SimpleSAMLphp 1.14.14 and earlier allows attackers with access to a secret token to extend its validity period by manipulating the prepended time offset.
Weakness: CWE-613
Which versions are affected by CVE-2017-12867?
2 open source packages ship an affected version, including simplesamlphp/simplesamlphp. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
simplesamlphp/simplesamlphp Packagist | From 1.14.0 | 1.14.15 |
simplesamlphp/simplesamlphp Packagist | From 1.14.0 | 1.14.15 |
Products include Simplesamlphp Simplesamlphp.
How do I fix CVE-2017-12867?
Upgrade simplesamlphp/simplesamlphp to 1.14.15 or later.
Is CVE-2017-12867 being exploited?
There is no known exploitation of CVE-2017-12867 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2017-12868 SimpleSAMLphp Session fixation issue and authentication bypass in the authcrypt module
- CVE-2018-7644 SimpleSAMLphp Improper Verification of Cryptographic Signature
- CVE-2026-49284 SimpleSAMLphp SP accepts a response from an unexpected IdP when unsigned `Response/InResponseTo` is combined with a signed assertion lacking `SubjectConfirmationData/InResponseTo`
- CVE-2018-6520 SimpleSAMLphp Open redirection protection bypass
- CVE-2017-12870 SimpleSAMLphp Unauthenticated encryption in CBC mode
Sources
Also known as DEBIAN-CVE-2017-12867, GHSA-597c-mh7m-48v7, UBUNTU-CVE-2017-12867.