GHSA-84j4-ccmw-hwpg · 深刻度: medium — OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of...
OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of username and public key is known to an SSH server, to test whether this suspicion is correct. This occurs because a challenge is sent only when that combination could be valid for a login session. NOTE: the vendor does not recognize user enumeration as a vulnerability for this product
総合評価: CVE-2016-20012 は悪用リスクが高い(63.6/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 8.65%、93 パーセンタイル) 根拠: 公開エクスプロイトが 2 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-05-30 | 14.60% | 8.65% | -5.96% |
| 2 | 2026-04-23 | 14.94% | 14.60% | -0.33% |
| 3 | 2026-04-21 | — | 14.94% | — |
EPSS の全履歴 (全 48 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 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
GHSA-84j4-ccmw-hwpg · 深刻度: medium — OpenSSH through 8.7 allows remote attackers, who have a suspicion that a certain combination of...
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2016-20012: 1 source package rows (openssh); 30 state rows across 5 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 0, open 30. | https://security.alpinelinux.org/vuln/CVE-2016-20012 |
debian
|
unimportant | CVE-2016-20012 unimportant priority: Debian including 1 source packages (openssh), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 5. | https://security-tracker.debian.org/tracker/CVE-2016-20012 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2016-20012 |
suse
|
low | — | https://www.suse.com/security/cve/CVE-2016-20012/ |
ubuntu
|
negligible | CVE-2016-20012 negligible priority: Ubuntu including 2 source packages (openssh, openssh-ssh1), 16 status rows across 8 suites (bionic, focal, hirsute, impish, jammy, trusty, upstream, xenial): ignored 14, DNE 2. | https://ubuntu.com/security/CVE-2016-20012 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| openbsd | openssh | <= 8.7 | cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* |
| netapp | clustered_data_ontap | — | cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* |
| netapp | hci_management_node | — | cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* |
| netapp | ontap_select_deploy_administration_utility | — | cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* |
| netapp | solidfire | — | cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/openssh/openssh-portable/blob/d0fffc88c8fe90c1815c6f4097bc8cbcabc0f3dd/auth2-pubkey.c#L261-L265 | Exploit Third Party Advisory |
| https://github.com/openssh/openssh-portable/pull/270 | Patch Third Party Advisory |
| https://github.com/openssh/openssh-portable/pull/270#issuecomment-920577097 | Issue Tracking Third Party Advisory |
| https://github.com/openssh/openssh-portable/pull/270#issuecomment-943909185 | Issue Tracking Third Party Advisory |
| https://rushter.com/blog/public-ssh-keys/ | Exploit Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20211014-0005/ | Third Party Advisory |
| https://utcc.utoronto.ca/~cks/space/blog/tech/SSHKeysAreInfoLeak | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2018/08/24/1 | Mailing List Third Party Advisory |