CVE-2017-12973 Nimbus JOSE+JWT vulnerable to padding oracle attack
Attackers can exploit a padding oracle vulnerability in Nimbus JOSE+JWT to decrypt AES-CBC data by improperly handling invalid HMACs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-12973?
CVE-2017-12973 is a low-severity vulnerability in n/a, published on 20 Aug 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Nimbus JOSE+JWT before 4.39 proceeds improperly after detection of an invalid HMAC in authenticated AES-CBC decryption, which allows attackers to conduct a padding oracle attack.
Weakness: CWE-354
Which versions are affected by CVE-2017-12973?
2 open source packages ship an affected version, including com.nimbusds:nimbus-jose-jwt. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
com.nimbusds:nimbus-jose-jwt Maven | All versions | 4.39 |
com.nimbusds:nimbus-jose-jwt Maven | All versions | 4.39 |
Products include Connect2id Nimbus Jose\+jwt.
How do I fix CVE-2017-12973?
Upgrade com.nimbusds:nimbus-jose-jwt to 4.39 or later.
Is CVE-2017-12973 being exploited?
There is no known exploitation of CVE-2017-12973 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-jfmq-4g4m-99rh.