| Title | ModSecurity における再帰制御に関する脆弱性 |
|---|---|
| Summary | ModSecurity には、再帰制御に関する脆弱性が存在します。 |
| Possible impacts | サービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution | ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。 |
| Publication Date | Nov. 24, 2021, midnight |
| Registration Date | Dec. 7, 2022, 2:40 p.m. |
| Last Update | Dec. 7, 2022, 2:40 p.m. |
| CVSS3.0 : 重要 | |
| Score | 7.5 |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CVSS2.0 : 警告 | |
| Score | 5 |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| オラクル |
| Oracle HTTP Server |
| ZFS Storage Appliance Kit |
| Debian |
| Debian GNU/Linux |
| F5 Networks |
| NGINX ModSecurity WAF |
| Trustwave |
| ModSecurity 3.0.5 までの 3.x |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2022年12月05日] 掲載 | Dec. 5, 2022, 9:44 a.m. |
| Summary | ModSecurity 3.x through 3.0.5 mishandles excessively nested JSON objects. Crafted JSON objects with nesting tens-of-thousands deep could result in the web server being unable to service legitimate requests. Even a moderately large (e.g., 300KB) HTTP request can occupy one of the limited NGINX worker processes for minutes and consume almost all of the available CPU on the machine. Modsecurity 2 is similarly vulnerable: the affected versions include 2.8.0 through 2.9.4. |
|---|---|
| Publication Date | Dec. 8, 2021, 7:15 a.m. |
| Registration Date | Dec. 8, 2021, 10 a.m. |
| Last Update | Nov. 21, 2024, 3:28 p.m. |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:trustwave:modsecurity:*:*:*:*:*:*:*:* | 2.0.0 | 2.9.5 | |||
| cpe:2.3:a:trustwave:modsecurity:*:*:*:*:*:*:*:* | 3.0.0 | 3.0.6 | |||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:a:f5:nginx_modsecurity_waf:r25:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:f5:nginx_modsecurity_waf:r24:*:*:*:*:*:*:* | |||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | |||||
| Configuration4 | or higher | or less | more than | less than | |
| cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:oracle:http_server:12.2.1.4.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* | |||||