CVE-2019-18790
| Summary |
An issue was discovered in channels/chan_sip.c in Sangoma Asterisk 13.x before 13.29.2, 16.x before 16.6.2, and 17.x before 17.0.1, and Certified Asterisk 13.21 before cert5. A SIP request can be sent to Asterisk that can change a SIP peer's IP address. A REGISTER does not need to occur, and calls can be hijacked as a result. The only thing that needs to be known is the peer's name; authentication details such as passwords do not need to be known. This vulnerability is only exploitable when the nat option is set to the default, or auto_force_rport.
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| Publication Date |
Nov. 23, 2019, 2:15 a.m. |
| Registration Date |
Jan. 26, 2021, 11:40 a.m. |
| Last Update |
Nov. 21, 2024, 1:33 p.m. |
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CVSS3.1 : MEDIUM
|
| スコア |
6.5
|
| Vector |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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) |
低 |
| 完全性への影響(I) |
低 |
| 可用性への影響(A) |
なし |
|
CVSS2.0 : MEDIUM
|
| Score |
5.8
|
| Vector |
AV:N/AC:M/Au:N/C:P/I:P/A:N |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
中 |
| 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) |
低 |
| 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
|
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:digium:certified_asterisk:13.21.0:cert4:*:*:*:*:*:* |
|
|
|
|
| cpe:2.3:a:digium:certified_asterisk:13.21.0:cert3:*:*:*:*:*:* |
|
|
|
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| cpe:2.3:a:digium:certified_asterisk:13.21.0:cert2:*:*:*:*:*:* |
|
|
|
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| cpe:2.3:a:digium:certified_asterisk:13.21.0:cert1:*:*:*:*:*:* |
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|
|
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| cpe:2.3:a:digium:certified_asterisk:13.21.0:rc1:*:*:*:*:*:* |
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|
|
| cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* |
13.0.0 |
|
|
13.29.2 |
| cpe:2.3:a:digium:certified_asterisk:13.21.0:*:*:*:*:*:*:* |
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|
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| cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* |
17.0.0 |
|
|
17.0.1 |
| cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* |
16.0.0 |
|
|
16.6.2 |
| Configuration2 |
or higher |
or less |
more than |
less than |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
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| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
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Related information, measures and tools
Common Vulnerabilities List
JVN Vulnerability Information
Sangoma Asterisk および Certified Asterisk における認証の欠如に関する脆弱性
| Title |
Sangoma Asterisk および Certified Asterisk における認証の欠如に関する脆弱性
|
| Summary |
Sangoma Asterisk および Certified Asterisk には、認証の欠如に関する脆弱性が存在します。
|
| Possible impacts |
情報を取得される、および情報を改ざん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. 21, 2019, midnight |
| Registration Date |
Dec. 6, 2019, 10:32 a.m. |
| Last Update |
Dec. 6, 2019, 10:32 a.m. |
Affected System
| Debian |
|
Debian GNU/Linux
|
| Digium |
|
Asterisk 13.x
|
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Asterisk 16.x
|
|
Asterisk 17.x
|
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Certified Asterisk 13.21
|
CVE (情報セキュリティ 共通脆弱性識別子)
CWE (共通脆弱性タイプ一覧)
ベンダー情報
その他
Change Log
| No |
Changed Details |
Date of change |
| 1 |
[2019年12月06日]
掲載 |
Dec. 6, 2019, 10:32 a.m. |