GHSA-rqw2-hhrf-7936 · 深刻度: medium · エコシステム: pip — OpenStack Keystone does not check signature TTL of the EC2 credential auth method
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
総合評価: CVE-2020-12692 は低リスク(39.1/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.70%、48 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.14% | 0.70% | +0.56% |
| 2 | 2025-11-21 | 0.18% | 0.14% | -0.04% |
| 3 | 2025-11-18 | — | 0.18% | — |
EPSS の全履歴 (全 10 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.4 | 3.1 | MEDIUM |
|
2.8 | 2.5 | [email protected] |
| 5.5 | 2.0 | MEDIUM |
|
8.0 | 4.9 | [email protected] |
GHSA-rqw2-hhrf-7936 · 深刻度: medium · エコシステム: pip — OpenStack Keystone does not check signature TTL of the EC2 credential auth method
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-12692 not yet assigned priority: Debian including 1 source packages (keystone), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-12692 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-12692 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2020-12692/ |
ubuntu
|
medium | CVE-2020-12692 medium priority: Ubuntu including 1 source packages (keystone), 17 status rows across 17 suites (bionic, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 12, released 2, DNE 1, ignored 1, needed 1. | https://ubuntu.com/security/CVE-2020-12692 |
| URL | タグ |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/05/07/1 | Mailing List Third Party Advisory |
| https://bugs.launchpad.net/keystone/+bug/1872737 | Third Party Advisory |
| https://security.openstack.org/ossa/OSSA-2020-003.html | Vendor Advisory |
| https://usn.ubuntu.com/4480-1/ | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2020/05/06/4 | Mailing List Third Party Advisory |