Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal 'copyfrom' paths that should be hidden according to configured path-based authorization (authz) rules. When a node has been copied from a protected location, users with access to the copy can see the 'copyfrom' path of the original. This also reveals the fact that the node was copied. Only the 'copyfrom' path is revealed; not its contents. Both httpd and svnserve servers are vulnerable.
総合評価: CVE-2021-28544 は悪用リスクが高い(61.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 2.79%、85 パーセンタイル) 根拠: 公開エクスプロイトが 1 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 ↗ |
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 | 2026-06-29 | 2.70% | 2.79% | +0.09% |
| 2 | 2026-06-15 | 0.38% | 2.70% | +2.32% |
| 3 | 2025-12-28 | — | 0.38% | — |
EPSS の全履歴 (全 23 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 |
|---|---|---|---|---|---|---|
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| 3.5 | 2.0 | LOW |
|
6.8 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2021-28544: 1 source package rows (subversion); 23 state rows across 8 repos (3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 16. | https://security.alpinelinux.org/vuln/CVE-2021-28544 |
debian
|
not yet assigned | CVE-2021-28544 not yet assigned priority: Debian including 1 source packages (subversion), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2021-28544 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2021-28544 |
suse
|
medium | CVE-2021-28544 severity moderate: SUSE including 57 source package names (libsvn_auth_gnome_keyring-1-0-1.10.6-150300.10.8.1, libsvn_auth_gnome_keyring-1-0-1.10.6-3.6.1, …), 222 product×package rows across 41 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (41 product lines)): Fixed 213, Known Not Affected 9. | https://www.suse.com/security/cve/CVE-2021-28544/ |
ubuntu
|
medium | CVE-2021-28544 medium priority: Ubuntu including 1 source packages (subversion), 6 status rows across 6 suites (bionic, focal, impish, jammy, upstream, xenial): released 4, not-affected 2. | https://ubuntu.com/security/CVE-2021-28544 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apache | subversion | >= 1.10.0, <= 1.14.1 | cpe:2.3:a:apache:subversion:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| fedoraproject | fedora | 36 | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
| apple | macos | >= 12.0, < 12.5 | cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://seclists.org/fulldisclosure/2022/Jul/18 | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PZ4ARNGLMGYBKYDX2B7DRBNMF6EH3A6R/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YJPMCWCGWBN3QWCDVILWQWPC75RR67LT/ | Mailing List Third Party Advisory |
| https://subversion.apache.org/security/CVE-2021-28544-advisory.txt | Exploit Patch Vendor Advisory |
| https://support.apple.com/kb/HT213345 | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5119 | Third Party Advisory |