NewStart CGSL CORE 5.04 / MAIN 5.04：samba 弱點 (NS-SA-2021-0114)
medium Nessus Plugin ID 154613
語系：
概要
遠端 NewStart CGSL 主機受到一個弱點影響。說明
執行 CORE 5.04 / MAIN 5.04 版的遠端 NewStart CGSL 主機上安裝的 samba 套件受到一個弱點影響：- 在 samba 中發現一個瑕疵。Samba smbd 檔案伺服器必須將 Windows 群組識別碼 (SID) 對應至 unix群組 ID (gids)。執行此動作的程式碼中有一個瑕疵，此瑕疵允許應用程式在負的快取項目已新增至對應快取時，讀取超出陣列結尾的資料。這可造成呼叫程式碼將這些值傳回至儲存使用者群組成員資格的處理程序 taoken。此弱點對資料機密性與完整性的威脅最大。
(CVE-2021-20254)
請注意，Nessus 並未測試此問題，而是僅依據應用程式自我報告的版本號碼。
解決方案
升級易受弱點影響的 CGSL samba 套件。請注意，可能尚未出爐已升級的套件。如需詳細資訊，請聯絡 ZTE。另請參閱
Plugin 詳細資訊
嚴重性: Medium
ID: 154613
檔案名稱: newstart_cgsl_NS-SA-2021-0114_samba.nasl
版本: 1.3
類型: local
已發布: 2021/10/28
已更新: 2022/1/26
支援的感應器: Nessus
風險資訊
VPR
風險因素: Medium
分數: 5.2
CVSS v2
風險因素: Medium
基本分數: 4.9
時間分數: 3.6
媒介: CVSS2#AV:N/AC:M/Au:S/C:P/I:P/A:N
CVSS 評分資料來源: CVE-2021-20254
CVSS v3
風險因素: Medium
基本分數: 6.8
時間分數: 5.9
媒介: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
時間媒介: CVSS:3.0/E:U/RL:O/RC:C
弱點資訊
CPE: p-cpe:/a:zte:cgsl_core:ctdb, p-cpe:/a:zte:cgsl_core:ctdb-tests, p-cpe:/a:zte:cgsl_core:libsmbclient, p-cpe:/a:zte:cgsl_core:libsmbclient-devel, p-cpe:/a:zte:cgsl_core:libwbclient, p-cpe:/a:zte:cgsl_core:libwbclient-devel, p-cpe:/a:zte:cgsl_core:samba, p-cpe:/a:zte:cgsl_core:samba-client, p-cpe:/a:zte:cgsl_core:samba-client-libs, p-cpe:/a:zte:cgsl_core:samba-common, p-cpe:/a:zte:cgsl_core:samba-common-libs, p-cpe:/a:zte:cgsl_core:samba-common-tools, p-cpe:/a:zte:cgsl_core:samba-dc, p-cpe:/a:zte:cgsl_core:samba-dc-libs, p-cpe:/a:zte:cgsl_core:samba-debuginfo, p-cpe:/a:zte:cgsl_core:samba-devel, p-cpe:/a:zte:cgsl_core:samba-krb5-printing, p-cpe:/a:zte:cgsl_core:samba-libs, p-cpe:/a:zte:cgsl_core:samba-pidl, p-cpe:/a:zte:cgsl_core:samba-test-libs, p-cpe:/a:zte:cgsl_core:samba-vfs-glusterfs, p-cpe:/a:zte:cgsl_core:samba-winbind, p-cpe:/a:zte:cgsl_core:samba-winbind-clients, p-cpe:/a:zte:cgsl_core:samba-winbind-krb5-locator, p-cpe:/a:zte:cgsl_core:samba-winbind-modules, p-cpe:/a:zte:cgsl_main:ctdb, p-cpe:/a:zte:cgsl_main:ctdb-tests, p-cpe:/a:zte:cgsl_main:libsmbclient, p-cpe:/a:zte:cgsl_main:libsmbclient-devel, p-cpe:/a:zte:cgsl_main:libwbclient, p-cpe:/a:zte:cgsl_main:libwbclient-devel, p-cpe:/a:zte:cgsl_main:samba, p-cpe:/a:zte:cgsl_main:samba-client, p-cpe:/a:zte:cgsl_main:samba-client-libs, p-cpe:/a:zte:cgsl_main:samba-common, p-cpe:/a:zte:cgsl_main:samba-common-libs, p-cpe:/a:zte:cgsl_main:samba-common-tools, p-cpe:/a:zte:cgsl_main:samba-dc, p-cpe:/a:zte:cgsl_main:samba-dc-libs, p-cpe:/a:zte:cgsl_main:samba-debuginfo, p-cpe:/a:zte:cgsl_main:samba-devel, p-cpe:/a:zte:cgsl_main:samba-krb5-printing, p-cpe:/a:zte:cgsl_main:samba-libs, p-cpe:/a:zte:cgsl_main:samba-pidl, p-cpe:/a:zte:cgsl_main:samba-python, p-cpe:/a:zte:cgsl_main:samba-python-test, p-cpe:/a:zte:cgsl_main:samba-test, p-cpe:/a:zte:cgsl_main:samba-test-libs, p-cpe:/a:zte:cgsl_main:samba-vfs-glusterfs, p-cpe:/a:zte:cgsl_main:samba-winbind, p-cpe:/a:zte:cgsl_main:samba-winbind-clients, p-cpe:/a:zte:cgsl_main:samba-winbind-krb5-locator, p-cpe:/a:zte:cgsl_main:samba-winbind-modules, cpe:/o:zte:cgsl_core:5, cpe:/o:zte:cgsl_main:5, p-cpe:/a:zte:cgsl_core:samba-python, p-cpe:/a:zte:cgsl_core:samba-python-test, p-cpe:/a:zte:cgsl_core:samba-test
必要的 KB 項目: Host/local_checks_enabled, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list, Host/cpu
可輕鬆利用: No known exploits are available
修補程式發佈日期: 2021/9/24
弱點發布日期: 2021/4/29
參考資訊
CVE: CVE-2021-20254
IAVA: 2021-A-0208-S