漏洞信息
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Vulnerability Title
Unbounded range expansion in cron describe causes memory exhaustion in oban_web
Vulnerability Description
Uncontrolled Resource Consumption vulnerability in oban-bg oban_web ('Elixir.Oban.Web.CronExpr' modules) allows memory exhaustion via unbounded cron range expansion.
An attacker with access to schedule cron jobs can submit a malicious cron expression such as "0 0 1-100000000 * *". When a user with dashboard access views the cron job list, 'Elixir.Oban.Web.CronExpr':describe/1 is called to render the expression. parse_range/1 parses both range endpoints via Integer.parse/1 with no bounds check, and the downstream helpers expand_dom_parts/1 and expand_dow_parts/1 materialise the range eagerly via Enum.to_list/1, causing allocation of ~2.4 GB and stalling or crashing the BEAM node. A sibling helper extract_dom_values already validates range bounds, but the expansion helpers do not.
This issue affects oban_web: from 2.12.0 before 2.12.5.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Vulnerability Title
Oban Web 安全漏洞
Vulnerability Description
Oban Web是Oban Framework开源的一个嵌入式实时后台任务监控仪表盘。 Oban Web 2.12.0版本至2.12.5之前版本存在安全漏洞,该漏洞源于Elixir.Oban.Web.CronExpr模块中cron范围扩展无限制,可能导致内存耗尽。
CVSS Information
N/A
Vulnerability Type
N/A