6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
6.4 Medium
AI Score
Confidence
High
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.123 Low
EPSS
Percentile
95.3%
The remote host is missing an update for the Debian
# SPDX-FileCopyrightText: 2021 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("1.3.6.1.4.1.25623.1.0.892733");
script_cve_id("CVE-2021-30640", "CVE-2021-33037");
script_tag(name:"creation_date", value:"2021-08-06 03:00:23 +0000 (Fri, 06 Aug 2021)");
script_version("2024-02-02T05:06:07+0000");
script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
script_tag(name:"cvss_base", value:"5.8");
script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:N");
script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N");
script_tag(name:"severity_origin", value:"NVD");
script_tag(name:"severity_date", value:"2021-07-26 17:00:12 +0000 (Mon, 26 Jul 2021)");
script_name("Debian: Security Advisory (DLA-2733-1)");
script_category(ACT_GATHER_INFO);
script_copyright("Copyright (C) 2021 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=DEB9");
script_xref(name:"Advisory-ID", value:"DLA-2733-1");
script_xref(name:"URL", value:"https://www.debian.org/lts/security/2021/DLA-2733-1");
script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/tomcat8");
script_xref(name:"URL", value:"https://wiki.debian.org/LTS");
script_tag(name:"summary", value:"The remote host is missing an update for the Debian 'tomcat8' package(s) announced via the DLA-2733-1 advisory.");
script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");
script_tag(name:"insight", value:"Several security vulnerabilities have been discovered in the Tomcat servlet and JSP engine.
CVE-2021-30640
A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm.
CVE-2021-33037
Apache Tomcat did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response, - Tomcat honoured the identify encoding, and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding.
For Debian 9 stretch, these problems have been fixed in version 8.5.54-0+deb9u7.
We recommend that you upgrade your tomcat8 packages.
For the detailed security status of tomcat8 please refer to its security tracker page at: [link moved to references]
Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: [link moved to references]");
script_tag(name:"affected", value:"'tomcat8' package(s) on Debian 9.");
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 == "DEB9") {
if(!isnull(res = isdpkgvuln(pkg:"libservlet3.1-java", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libservlet3.1-java-doc", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libtomcat8-embed-java", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libtomcat8-java", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat8", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat8-admin", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat8-common", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat8-docs", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat8-examples", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"tomcat8-user", ver:"8.5.54-0+deb9u7", rls:"DEB9"))) {
report += res;
}
if(report != "") {
security_message(data:report);
} else if(__pkg_match) {
exit(99);
}
exit(0);
}
exit(0);
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N
6.4 Medium
AI Score
Confidence
High
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.123 Low
EPSS
Percentile
95.3%