| Summary | libcurl 7.1 through 7.57.0 might accidentally leak authentication data to third parties. When asked to send custom headers in its HTTP requests, libcurl will send that set of headers first to the host in the initial URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the `Location:` response header value. Sending the same set of headers to subsequent hosts is in particular a problem for applications that pass on custom `Authorization:` headers, as this header often contains privacy sensitive information or data that could allow others to impersonate the libcurl-using client's request. |
|---|---|
| Publication Date | Jan. 25, 2018, 7:29 a.m. |
| Registration Date | March 1, 2021, 6:39 p.m. |
| Last Update | Nov. 21, 2024, 12:39 p.m. |
| CVSS3.1 : CRITICAL | |
| スコア | 9.8 |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃に必要な特権レベル(PR) | 不要 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | 高 |
| 完全性への影響(I) | 高 |
| 可用性への影響(A) | 高 |
| CVSS2.0 : MEDIUM | |
| Score | 5.0 |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 低 |
| 攻撃前の認証要否(Au) | 不要 |
| 機密性への影響(C) | 低 |
| 完全性への影響(I) | なし |
| 可用性への影響(A) | なし |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* | 7.1 | 7.57.0 | |||
| Configuration2 | or higher | or less | more than | less than | |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | |||||
| Configuration3 | or higher | or less | more than | less than | |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | |||||
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | |||||
| cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* | |||||
| cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* | |||||
| Configuration4 | or higher | or less | more than | less than | |
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* | |||||
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* | |||||
| Configuration5 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* | xcp2361 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m10-1:-:*:*:*:*:*:*:* | ||||
| Configuration6 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* | xcp2361 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m10-4:-:*:*:*:*:*:*:* | ||||
| Configuration7 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* | xcp2361 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m10-4s:-:*:*:*:*:*:*:* | ||||
| Configuration8 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* | xcp2361 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m12-1:-:*:*:*:*:*:*:* | ||||
| Configuration9 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* | xcp2361 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m12-2:-:*:*:*:*:*:*:* | ||||
| Configuration10 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* | xcp2361 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m12-2s:-:*:*:*:*:*:*:* | ||||
| Configuration11 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m10-1_firmware:*:*:*:*:*:*:*:* | xcp3070 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m10-1:-:*:*:*:*:*:*:* | ||||
| Configuration12 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m10-4_firmware:*:*:*:*:*:*:*:* | xcp3070 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m10-4:-:*:*:*:*:*:*:* | ||||
| Configuration13 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m10-4s_firmware:*:*:*:*:*:*:*:* | xcp3070 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m10-4s:-:*:*:*:*:*:*:* | ||||
| Configuration14 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m12-1_firmware:*:*:*:*:*:*:*:* | xcp3070 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m12-1:-:*:*:*:*:*:*:* | ||||
| Configuration15 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m12-2_firmware:*:*:*:*:*:*:*:* | xcp3070 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m12-2:-:*:*:*:*:*:*:* | ||||
| Configuration16 | or higher | or less | more than | less than | |
| cpe:2.3:o:fujitsu:m12-2s_firmware:*:*:*:*:*:*:*:* | xcp3070 | ||||
| execution environment | |||||
| 1 | cpe:2.3:h:fujitsu:m12-2s:-:*:*:*:*:*:*:* | ||||
| Title | libcurl における情報漏えいに関する脆弱性 |
|---|---|
| Summary | libcurl には、情報漏えいに関する脆弱性が存在します。 |
| Possible impacts | 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (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 | Jan. 24, 2018, midnight |
| Registration Date | Feb. 26, 2018, 3:37 p.m. |
| Last Update | Feb. 26, 2018, 3:37 p.m. |
| Debian |
| Debian GNU/Linux 7.0 |
| Debian GNU/Linux 8.0 |
| Debian GNU/Linux 9.0 |
| Haxx |
| libcurl |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2018年02月26日] 掲載 |
Feb. 26, 2018, 3:37 p.m. |