Vulnerabilities > CVE-2015-2141 - Information Exposure vulnerability in multiple products

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
cryptopp
opensuse
CWE-200
nessus
NVD
Published: 2015-07-01
Updated: 2024-11-21

Summary

The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 does not properly blind private key operations for the Rabin-Williams digital signature algorithm, which allows remote attackers to obtain private keys via a timing attack.

Vulnerable Configurations

Part Description Count
Application
Cryptopp
1
OS
Opensuse
2

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2015-10911.NASL
    description - Fix for CVE-2015-2141 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2015-07-16
    plugin id84773
    published2015-07-16
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/84773
    titleFedora 21 : cryptopp-5.6.2-9.fc21 (2015-10911)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory 2015-10911.
#

include("compat.inc");

if (description)
{
  script_id(84773);
  script_version("2.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2015-2141");
  script_xref(name:"FEDORA", value:"2015-10911");

  script_name(english:"Fedora 21 : cryptopp-5.6.2-9.fc21 (2015-10911)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"  - Fix for CVE-2015-2141

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  # https://lists.fedoraproject.org/pipermail/package-announce/2015-July/162023.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?99b25f38"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected cryptopp package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:cryptopp");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:21");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/06/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/16");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2020 Tenable Network Security, Inc.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! ereg(pattern:"^21([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 21.x", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);

flag = 0;
if (rpm_check(release:"FC21", reference:"cryptopp-5.6.2-9.fc21")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "cryptopp");
}
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2015-504.NASL
    descriptionlibcryptopp was updated to fix one security issue. This security issue was fixed : - CVE-2015-2141: The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 did not properly blind private key operations for the Rabin-Williams digital signature algorithm, which allowed remote attackers to obtain private keys via a timing attack (bsc#936435).
    last seen2020-06-05
    modified2015-07-21
    plugin id84888
    published2015-07-21
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/84888
    titleopenSUSE Security Update : libcryptopp (openSUSE-2015-504)
    code
    #%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2015-504.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(84888);
  script_version("2.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2015-2141");

  script_name(english:"openSUSE Security Update : libcryptopp (openSUSE-2015-504)");
  script_summary(english:"Check for the openSUSE-2015-504 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"libcryptopp was updated to fix one security issue.

This security issue was fixed :

  - CVE-2015-2141: The
    InvertibleRWFunction::CalculateInverse function in
    rw.cpp in libcrypt++ 5.6.2 did not properly blind
    private key operations for the Rabin-Williams digital
    signature algorithm, which allowed remote attackers to
    obtain private keys via a timing attack (bsc#936435)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=936435"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected libcryptopp packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp-5_6_2-0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp-5_6_2-0-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp-5_6_2-0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp-5_6_2-0-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libcryptopp-devel-static");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:13.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/07/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/07/21");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2020 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE13\.1|SUSE13\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "13.1 / 13.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE13.1", reference:"libcryptopp-5_6_2-0-5.6.2-2.4.2") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"libcryptopp-5_6_2-0-debuginfo-5.6.2-2.4.2") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"libcryptopp-debugsource-5.6.2-2.4.2") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"libcryptopp-devel-5.6.2-2.4.2") ) flag++;
if ( rpm_check(release:"SUSE13.1", reference:"libcryptopp-devel-static-5.6.2-2.4.2") ) flag++;
if ( rpm_check(release:"SUSE13.1", cpu:"x86_64", reference:"libcryptopp-5_6_2-0-32bit-5.6.2-2.4.2") ) flag++;
if ( rpm_check(release:"SUSE13.1", cpu:"x86_64", reference:"libcryptopp-5_6_2-0-debuginfo-32bit-5.6.2-2.4.2") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"libcryptopp-5_6_2-0-5.6.2-7.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"libcryptopp-5_6_2-0-debuginfo-5.6.2-7.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"libcryptopp-debugsource-5.6.2-7.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"libcryptopp-devel-5.6.2-7.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", reference:"libcryptopp-devel-static-5.6.2-7.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", cpu:"x86_64", reference:"libcryptopp-5_6_2-0-32bit-5.6.2-7.4.1") ) flag++;
if ( rpm_check(release:"SUSE13.2", cpu:"x86_64", reference:"libcryptopp-5_6_2-0-debuginfo-32bit-5.6.2-7.4.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libcryptopp-5_6_2-0-32bit / libcryptopp-5_6_2-0 / etc");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3296.NASL
    descriptionEvgeny Sidorov discovered that libcrypto++, a general purpose C++ cryptographic library, did not properly implement blinding to mask private key operations for the Rabin-Williams digital signature algorithm. This could allow remote attackers to mount a timing attack and retrieve the user
    last seen2020-06-01
    modified2020-06-02
    plugin id84436
    published2015-06-29
    reporterThis script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/84436
    titleDebian DSA-3296-1 : libcrypto++ - security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3296. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(84436);
  script_version("2.5");
  script_cvs_date("Date: 2018/11/10 11:49:37");

  script_cve_id("CVE-2015-2141");
  script_xref(name:"DSA", value:"3296");

  script_name(english:"Debian DSA-3296-1 : libcrypto++ - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Evgeny Sidorov discovered that libcrypto++, a general purpose C++
cryptographic library, did not properly implement blinding to mask
private key operations for the Rabin-Williams digital signature
algorithm. This could allow remote attackers to mount a timing attack
and retrieve the user's private key."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/libcrypto++"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/libcrypto++"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2015/dsa-3296"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the libcrypto++ packages.

For the oldstable distribution (wheezy), this problem has been fixed
in version 5.6.1-6+deb7u1.

For the stable distribution (jessie), this problem has been fixed in
version 5.6.1-6+deb8u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcrypto++");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/06/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/06/29");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Debian Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"7.0", prefix:"libcrypto++-dev", reference:"5.6.1-6+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libcrypto++-doc", reference:"5.6.1-6+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libcrypto++-utils", reference:"5.6.1-6+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libcrypto++9", reference:"5.6.1-6+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libcrypto++9-dbg", reference:"5.6.1-6+deb7u1")) flag++;
if (deb_check(release:"8.0", prefix:"libcrypto++-dev", reference:"5.6.1-6+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libcrypto++-doc", reference:"5.6.1-6+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libcrypto++-utils", reference:"5.6.1-6+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libcrypto++9", reference:"5.6.1-6+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libcrypto++9-dbg", reference:"5.6.1-6+deb8u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_EAB68CFFBC0C11E6B2CA001B3856973B.NASL
    descriptionMultiple sources report : CVE-2015-2141: The InvertibleRWFunction::CalculateInverse function in rw.cpp in libcrypt++ 5.6.2 does not properly blind private key operations for the Rabin-Williams digital signature algorithm, which allows remote attackers to obtain private keys via a timing attack. Fixed in 5.6.3. CVE-2016-3995: Incorrect implementation of Rijndael timing attack countermeasure. Fixed in 5.6.4. CVE-2016-7420: Library built without -DNDEBUG could egress sensitive information to the filesystem via a core dump if an assert was triggered. Fixed in 5.6.5.
    last seen2020-06-01
    modified2020-06-02
    plugin id95589
    published2016-12-07
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/95589
    titleFreeBSD : cryptopp -- multiple vulnerabilities (eab68cff-bc0c-11e6-b2ca-001b3856973b)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-262.NASL
    descriptionEvgeny Sidorov discovered that libcrypto++, a general purpose C++ cryptographic library, did not properly implement blinding to mask private key operations for the Rabin-Williams digital signature algorithm. This could allow remote attackers to mount a timing attack and retrieve the user
    last seen2020-03-17
    modified2015-07-01
    plugin id84473
    published2015-07-01
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/84473
    titleDebian DLA-262-1 : libcrypto++ security update
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2015-10914.NASL
    description - Fix for CVE-2015-2141 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-05
    modified2015-07-16
    plugin id84774
    published2015-07-16
    reporterThis script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/84774
    titleFedora 22 : cryptopp-5.6.2-9.fc22 (2015-10914)

References