一、 漏洞 CVE-2024-52797 基础信息
漏洞标题
Opencast搜索功能可能导致拒绝服务漏洞
来源：AIGC 神龙大模型
漏洞描述信息
N/A
来源：AIGC 神龙大模型
CVSS信息
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
来源：AIGC 神龙大模型
漏洞类别
不可达退出条件的循环(无限循环)
来源：AIGC 神龙大模型
漏洞标题
Searching Opencast may cause a denial of service
来源：美国国家漏洞数据库 NVD
漏洞描述信息
Opencast is free and open source software for automated video capture and distribution. First noticed in Opencast 13 and 14, Opencast's Elasticsearch integration may generate syntactically invalid Elasticsearch queries in relation to previously acceptable search queries. From Opencast version 11.4 and newer, Elasticsearch queries are retried a configurable number of times in the case of error to handle temporary losses of connection to Elasticsearch. These invalid queries would fail, causing the retry mechanism to begin requerying with the same syntactically invalid query immediately, in an infinite loop. This causes a massive increase in log size which can in some cases cause a denial of service due to disk exhaustion. Opencast 13.10 and Opencast 14.3 contain patches which address the base issue, with Opencast 16.7 containing changes which harmonize the search behaviour between the admin UI and external API. Users are strongly recommended to upgrade as soon as possible if running versions prior to 13.10 or 14.3. While the relevant endpoints require (by default) `ROLE_ADMIN` or `ROLE_API_SERIES_VIEW`, the problem queries are otherwise innocuous. This issue could be easily triggered by normal administrative work on an affected Opencast system. Those who run a version newer than 13.10 and 14.3 and see different results when searching in their admin UI vs your external API or LMS, may resolve the issue by upgrading to 16.7. No known workarounds for the vulnerability are available.
来源：美国国家漏洞数据库 NVD
CVSS信息
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
来源：美国国家漏洞数据库 NVD
漏洞类别
不加限制或调节的资源分配
来源：美国国家漏洞数据库 NVD
漏洞标题
Opencast 安全漏洞
来源：中国国家信息安全漏洞库 CNNVD
漏洞描述信息
Opencast是Opencast组织的一款用于大规模自动视频捕获，管理和分发的直播视频支撑软件。 Opencast存在安全漏洞，该漏洞源于会生成语法上无效的Elasticsearch查询语句，从而导致拒绝服务。
来源：中国国家信息安全漏洞库 CNNVD
CVSS信息
N/A
来源：中国国家信息安全漏洞库 CNNVD
漏洞类别
其他
来源：中国国家信息安全漏洞库 CNNVD
二、漏洞 CVE-2024-52797 的公开POC
# POC 描述 源链接 神龙链接
三、漏洞 CVE-2024-52797 的情报信息

  • 标题： Escape ES query string in external API endpoints by Arnei · Pull Request #5033 · opencast/opencast · GitHub -- 🔗来源链接

    标签： x_refsource_MISC

    神龙速读
    Escape ES query string in external API endpoints by Arnei · Pull Request #5033 · opencast/opencast · GitHub

  • 标题： Fix Endless Loop on Elasticsearch Exception by KatrinIhler · Pull Request #5150 · opencast/opencast · GitHub -- 🔗来源链接

    标签： x_refsource_MISC

    神龙速读
    Fix Endless Loop on Elasticsearch Exception by KatrinIhler · Pull Request #5150 · opencast/opencast · GitHub

  • 标题： Searching Opencast may cause a denial of service · Advisory · opencast/opencast · GitHub -- 🔗来源链接

    标签： x_refsource_CONFIRM

    神龙速读
    Searching Opencast may cause a denial of service · Advisory · opencast/opencast · GitHub
  • https://nvd.nist.gov/vuln/detail/CVE-2024-52797