CVE-2018-1098: CSRF
First published: Wed Mar 07 2018(Updated: )
A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (can't PUT from an HTML form or such) but POST allows creating in-order keys that an attacker can send.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| go/go.etcd.io/etcd/v3 | <3.4.0 | 3.4.0 |
| etcd | <=3.3.1 | |
| Fedora | =30 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2018-1098
- https://github.com/coreos/etcd/issues/9353
- https://github.com/coreos/etcd/commit/a7e5790c82039945639798ae9a3289fe787f5e56
- https://bugzilla.redhat.com/show_bug.cgi?id=1552714
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/
- https://github.com/advisories/GHSA-5gjm-fj42-x983 (Advisory)
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1552720
- https://www.twistlock.com/2018/02/28/dear-developers-beware-dns-rebinding/
Frequently Asked Questions
What is the severity of CVE-2018-1098?
CVE-2018-1098 is classified as a high severity cross-site request forgery vulnerability.
How do I fix CVE-2018-1098?
To remediate CVE-2018-1098, upgrade etcd to version 3.4.0 or later.
What versions of etcd are affected by CVE-2018-1098?
CVE-2018-1098 affects etcd versions 3.3.1 and earlier.
What type of vulnerability is CVE-2018-1098?
CVE-2018-1098 is a cross-site request forgery flaw that allows attackers to send unauthorized requests.
Can CVE-2018-1098 be exploited remotely?
Yes, an attacker can exploit CVE-2018-1098 remotely by creating a malicious website to send POST requests to the etcd server.
- collector/github-advisory-latest
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- version/fedora/30