CVE-2017-1000452 Samlify vulnerable to Authentication Bypass by allowing tokens to be reused with different usernames
Attackers can impersonate arbitrary users via XML Signature Wrapping in the Samlify SAML authentication library.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-1000452?
CVE-2017-1000452 is a high-severity authentication bypass vulnerability in n/a, published on 2 Jan 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An XML Signature Wrapping vulnerability exists in Samlify 2.2.0 and earlier, and in predecessor Express-saml2 which could allow attackers to impersonate arbitrary users.
Weakness: CWE-91
Which versions are affected by CVE-2017-1000452?
2 open source packages ship an affected version, including samlify. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
samlify npm | All versions | 2.4.0-rc5 |
samlify npm | All versions | 2.4.0-rc5 |
Products include Samlify Project Samlify.
How do I fix CVE-2017-1000452?
Upgrade samlify to 2.4.0-rc5 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2017-1000452 being exploited?
There is no known exploitation of CVE-2017-1000452 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-8jjf-w7j6-323c.