Ubuntu 8.04 LTS / 10.04 LTS / 10.10 / 11.04 : pam vulnerabilities (USN-1140-1)

medium Nessus プラグイン ID 55102
New! プラグインの深刻度には CVSS v3 が適用されるようになりました。

プラグインの深刻度は、デフォルトで CVSS v3 を使って計算されるように更新されました。プラグインに CVSS v3 スコアがない場合には、CVSS v2 を使って深刻度が計算されます。深刻度の表示設定は、[設定]のドロップダウンで切り替えができます。

概要

The remote Ubuntu host is missing a security-related patch.

説明

Marcus Granado discovered that PAM incorrectly handled configuration files with non-ASCII usernames. A remote attacker could use this flaw to cause a denial of service, or possibly obtain login access with a different users username. This issue only affected Ubuntu 8.04 LTS.
(CVE-2009-0887)

It was discovered that the PAM pam_xauth, pam_env and pam_mail modules incorrectly handled dropping privileges when performing operations. A local attacker could use this flaw to read certain arbitrary files, and access other sensitive information. (CVE-2010-3316, CVE-2010-3430, CVE-2010-3431, CVE-2010-3435)

It was discovered that the PAM pam_namespace module incorrectly cleaned the environment during execution of the namespace.init script.
A local attacker could use this flaw to possibly gain privileges.
(CVE-2010-3853)

It was discovered that the PAM pam_xauth module incorrectly handled certain failures. A local attacker could use this flaw to delete certain unintended files. (CVE-2010-4706)

It was discovered that the PAM pam_xauth module incorrectly verified certain file properties. A local attacker could use this flaw to cause a denial of service. (CVE-2010-4707).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ソリューション

Update the affected libpam-modules package.

関連情報

https://usn.ubuntu.com/1140-1/

プラグインの詳細

深刻度: Medium

ID: 55102

ファイル名: ubuntu_USN-1140-1.nasl

バージョン: 1.10

タイプ: local

エージェント: unix

公開日: 2011/6/13

更新日: 2019/9/19

依存関係: ssh_get_info.nasl

リスク情報

VPR

リスクファクター: Medium

スコア: 5.9

CVSS v2

リスクファクター: Medium

Base Score: 6.9

Temporal Score: 5.1

ベクトル: AV:L/AC:M/Au:N/C:C/I:C/A:C

現状ベクトル: E:U/RL:OF/RC:C

脆弱性情報

CPE: p-cpe:/a:canonical:ubuntu_linux:libpam-modules, cpe:/o:canonical:ubuntu_linux:10.04:-:lts, cpe:/o:canonical:ubuntu_linux:10.10, cpe:/o:canonical:ubuntu_linux:11.04, cpe:/o:canonical:ubuntu_linux:8.04:-:lts

必要な KB アイテム: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

エクスプロイトの容易さ: No known exploits are available

パッチ公開日: 2011/5/30

脆弱性公開日: 2009/3/12

参照情報

CVE: CVE-2009-0887, CVE-2010-3316, CVE-2010-3430, CVE-2010-3431, CVE-2010-3435, CVE-2010-3853, CVE-2010-4706, CVE-2010-4707

BID: 34010, 42472, 43487, 44590, 46045

USN: 1140-1

CWE: 189