Debian: Security Advisory (DSA-1394-1)

# SPDX-FileCopyrightText: 2008 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.58692");
  script_cve_id("CVE-2007-4739");
  script_tag(name:"creation_date", value:"2008-01-17 22:19:52 +0000 (Thu, 17 Jan 2008)");
  script_version("2024-02-01T14:37:10+0000");
  script_tag(name:"last_modification", value:"2024-02-01 14:37:10 +0000 (Thu, 01 Feb 2024)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:P/A:N");

  script_name("Debian: Security Advisory (DSA-1394-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2008 Greenbone AG");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB4");

  script_xref(name:"Advisory-ID", value:"DSA-1394-1");
  script_xref(name:"URL", value:"https://www.debian.org/security/2007/DSA-1394-1");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-1394");

  script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'reprepro' package(s) announced via the DSA-1394-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"It was discovered that reprepro, a tool to create a repository of Debian packages, only checks the validity of known signatures when updating from a remote site, and thus does not reject packages with only unknown signatures. This allows an attacker to bypass this authentication mechanism.

The oldstable distribution (sarge) is not affected by this problem.

For the stable distribution (etch) this problem has been fixed in version 1.3.1+1-1.

For the unstable distribution (sid) this problem has been fixed in version 2.2.4-1.

We recommend that you upgrade your reprepro package.");

  script_tag(name:"affected", value:"'reprepro' package(s) on Debian 4.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "DEB4") {

  if(!isnull(res = isdpkgvuln(pkg:"reprepro", ver:"1.3.1+1-1", rls:"DEB4"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);