Slackware: Security Advisory (SSA:2024-105-01)

# SPDX-FileCopyrightText: 2024 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("1.3.6.1.4.1.25623.1.1.13.2024.105.01");
  script_cve_id("CVE-2024-32487");
  script_tag(name:"creation_date", value:"2024-04-15 04:34:30 +0000 (Mon, 15 Apr 2024)");
  script_version("2024-04-15T05:05:35+0000");
  script_tag(name:"last_modification", value:"2024-04-15 05:05:35 +0000 (Mon, 15 Apr 2024)");
  script_tag(name:"cvss_base", value:"5.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_name("Slackware: Security Advisory (SSA:2024-105-01)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2024 Greenbone AG");
  script_family("Slackware Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/slackware_linux", "ssh/login/slackpack", re:"ssh/login/release=SLK(15\.0|current)");

  script_xref(name:"Advisory-ID", value:"SSA:2024-105-01");
  script_xref(name:"URL", value:"http://www.slackware.com/security/viewer.php?l=slackware-security&y=2024&m=slackware-security.367026");
  script_xref(name:"URL", value:"https://www.cve.org/CVERecord?id=CVE-2024-32487");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'less' package(s) announced via the SSA:2024-105-01 advisory.");

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

  script_tag(name:"insight", value:"New less packages are available for Slackware 15.0 and -current to
fix a security issue.


Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/less-653-i586-1_slack15.0.txz: Upgraded.
 This update patches a security issue:
 less through 653 allows OS command execution via a newline character in the
 name of a file, because quoting is mishandled in filename.c. Exploitation
 typically requires use with attacker-controlled file names, such as the files
 extracted from an untrusted archive. Exploitation also requires the LESSOPEN
 environment variable, but this is set by default in many common cases.
 For more information, see:
 [link moved to references]
 (* Security fix *)
+--------------------------+");

  script_tag(name:"affected", value:"'less' package(s) on Slackware 15.0, Slackware current.");

  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-slack.inc");

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

res = "";
report = "";

if(release == "SLK15.0") {

  if(!isnull(res = isslkpkgvuln(pkg:"less", ver:"653-i586-1_slack15.0", rls:"SLK15.0"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"less", ver:"653-x86_64-1_slack15.0", rls:"SLK15.0"))) {
    report += res;
  }

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

if(release == "SLKcurrent") {

  if(!isnull(res = isslkpkgvuln(pkg:"less", ver:"653-i586-2", rls:"SLKcurrent"))) {
    report += res;
  }

  if(!isnull(res = isslkpkgvuln(pkg:"less", ver:"653-x86_64-2", rls:"SLKcurrent"))) {
    report += res;
  }

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

exit(0);