CVE-2020-26258
libxstream-java - security update
描述
XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.15, a Server-Side Forgery Request vulnerability can be activated when unmarshalling. The vulnerability may allow a remote attacker to request data from internal resources that are not publicly available only by manipulating the processed input stream. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.15. The reported vulnerability does not exist if running Java 15 or higher. No user is affected who followed the recommendation to setup XStream's Security Framework with a whitelist! Anyone relying on XStream's default blacklist can immediately switch to a whilelist for the allowed types to avoid the vulnerability. Users of XStream 1.4.14 or below who still want to use XStream default blacklist can use a workaround described in more detailed in the referenced advisories.
如何修補 CVE-2020-26258
要修補 CVE-2020-26258,請將受影響套件升級到下列已修補版本。
- —升級至 1.4.15-1 或更新版本
- —升級至 1.4.11.1-1+deb9u1 或更新版本
- —升級至 1.4.11.1-1+deb10u2 或更新版本
- —升級至 1.4.15 或更新版本
CVE-2020-26258 正在被利用嗎?
可能 — EPSS 為 82.2%,屬於高被利用機率區間,建議優先修補。
受影響套件(4)
- from 0, < 1.4.15-1
- from 0, < 1.4.11.1-1+deb9u1
- from 0, < 1.4.11.1-1+deb10u2
- from 0, < 1.4.15
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |