描述:
有关 Adobe Reader 及 Acrobat 的安全更新已发布,以应对数个漏洞。远端攻击者可诱使目标用户开启特制的PDF档案来攻击这些漏洞。
有报告指 Adobe Reader/Acrobat 中针对 Windows 用户的执行任意程式码漏洞 (CVE-2021-21017 ) 正受到攻击。系统管理员应立即为受影响的系统安装修补程式,以减低受到网络攻击的风险。
受影响的系统:
- Acrobat DC (Windows 及 macOS) Continuous 2020.013.20074 和之前版本
- Acrobat Reader DC (Windows 及 macOS) Continuous 2020.013.20074 和之前版本
- Acrobat 2020 (Windows 及 macOS) Classic 2020 2020.001.30018 和之前版本
- Acrobat Reader 2020 (Windows 及 macOS) Classic 2020 2020.001.30018 和之前版本
- Acrobat 2017 (Windows 及 macOS) Classic 2017 2017.011.30188 和之前版本
- Acrobat Reader 2017 (Windows 及 macOS) Classic 2017 2017.011.30188 和之前版本
影响:
成功利用这些漏洞可在受影响的系统导致执行任意程式码、服务受阻断、权限提升及泄漏资讯。
建议:
受影响系统的用户应更新 Adobe Reader 及 Acrobat 至以下版本以应对以上问题。更新可透过产品本身的自动更新机制或下列网址更新其软件:
- Acrobat DC (Windows 及 macOS) Continuous 2021.001.20135
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#continuous-track
- Acrobat Reader DC (Windows 及 macOS) Continuous 2021.001.20135
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#continuous-track
- Acrobat 2020 (Windows 及 macOS) Classic 2020 2020.001.30020
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#classic-track
- Acrobat Reader 2020 (Windows 及 macOS) Classic 2020 2020.001.30020
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#classic-track
- Acrobat 2017 (Windows 及 macOS) Classic 2017 2017.011.30190
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#id3
- Acrobat Reader 2017 (Windows 及 macOS) Classic 2017 2017.011.30190
https://www.adobe.com/devnet-docs/acrobatetk/tools/ReleaseNotesDC/index.html#id3
进一步信息:
- https://helpx.adobe.com/security/products/acrobat/apsb21-09.html
- https://www.hkcert.org/tc/security-bulletin/adobe-monthly-security-update-feb-2021-_20210210
- https://us-cert.cisa.gov/ncas/current-activity/2021/02/09/adobe-releases-security-updates
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21017
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21021
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21028
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21033 (to CVE-2021-21042)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21044 (to CVE-2021-21046)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21057 (to CVE-2021-21063)