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CVE-2020-1772— Information Disclosure

Quick assessment

Affected
OTRS AG ((OTRS)) Community Edition
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Open-source Ticket Request System（OTRS）是德国OTRS集团的一套开源缺陷跟踪管理系统软件。该软件将电话，邮件等各种渠道提交进来的服务请求归类为不同的队列、服务级别，服务人员通过OTRS系统来跟踪和回复客户。 OTRS Community Edition 5.0.41及之前版本、6.0.26及之前版本和OTRS 7.0.15及之前版本中存在安全漏洞。攻击者可通过创建令牌值中带有通配符的Lost Password请求利用该漏洞检索有效的令牌。

CVSS 6.5 · Medium EPSS 1.60% · P75

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token
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I. Basic Information for CVE-2020-1772

Vulnerability Information
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Vulnerability Title
Information Disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
It's possible to craft Lost Password requests with wildcards in the Token value, which allows attacker to retrieve valid Token(s), generated by users which already requested new passwords. This issue affects: ((OTRS)) Community Edition 5.0.41 and prior versions, 6.0.26 and prior versions. OTRS: 7.0.15 and prior versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
双字符或匹配符号转义处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OTRS 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open-source Ticket Request System（OTRS）是德国OTRS集团的一套开源缺陷跟踪管理系统软件。该软件将电话，邮件等各种渠道提交进来的服务请求归类为不同的队列、服务级别，服务人员通过OTRS系统来跟踪和回复客户。 OTRS Community Edition 5.0.41及之前版本、6.0.26及之前版本和OTRS 7.0.15及之前版本中存在安全漏洞。攻击者可通过创建令牌值中带有通配符的Lost Password请求利用该漏洞检索有效的令牌。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OTRS AG ((OTRS)) Community Edition 5.0.x ~ 5.0.41 -
OTRS AG OTRS 7.0.x ~ 7.0.15 -

II. Public POCs for CVE-2020-1772

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III. Intelligence Information for CVE-2020-1772

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Mailing List Discussions for CVE-2020-1772 (5)

Other References for CVE-2020-1772 (1)

Same Patch Batch · OTRS AG · 2020-03-27 · 5 CVEs total

CVE-2020-1773 7.3 HIGH Session / Password / Password token leak
CVE-2020-1771 4.6 MEDIUM Possible XSS in Customer user address book
CVE-2020-1769 3.5 LOW Autocomplete in the form login screens
CVE-2020-1770 2.4 LOW Information disclosure in support bundle files

IV. Related Vulnerabilities

Same product: ((OTRS)) Community Edition
Same vendor: OTRS AG
Same weakness: CWE-155

V. Comments for CVE-2020-1772

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